Equity - Additional Information (Details) (USD $)
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12 Months Ended |
0 Months Ended |
1 Months Ended |
Dec. 31, 2014
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Dec. 31, 2013
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Feb. 12, 2014
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Nov. 26, 2014
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Feb. 28, 2014
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Sep. 30, 2013
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Aug. 31, 2013
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Class Of Stock [Line Items] |
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Common stock, authorized |
250,000,000us-gaap_CommonStockSharesAuthorized
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250,000,000us-gaap_CommonStockSharesAuthorized
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Convertible preferred stock, authorized |
130,000,000us-gaap_TemporaryEquitySharesAuthorized
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100,000,000us-gaap_TemporaryEquitySharesAuthorized
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Common stock shares, issued |
50,583us-gaap_StockIssuedDuringPeriodSharesNewIssues
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Proceeds from issuance of common stock, net of issuance costs |
$ 15,369,000us-gaap_ProceedsFromIssuanceOfCommonStock
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Maximum denominator to calculate conversion ratio |
8.00amda_MaximumDenominatorToCalculateConversionRatio
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Preferred stock converted to common, Value |
162,432,000us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
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Proceeds from issuance of units, net of issuance costs |
11,320,000amda_ProceedsFromIssuanceOfUnits
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Additional paid-in capital / (capital deficiency) |
179,148,000us-gaap_AdditionalPaidInCapitalCommonStock
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(13,144,000)us-gaap_AdditionalPaidInCapitalCommonStock
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Restricted common stock issued, Shares, Termination of consulting agreement |
50,000us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
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Common stock shares issued upon vesting of restricted stock units |
444,403us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardGross
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Issuance of common stock in connection with exercise of warrants, Shares |
9,328amda_IssuanceOfCommonStockUponExerciseOfWarrantsShares
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Convertible preferred stock, issued |
0us-gaap_TemporaryEquitySharesIssued
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80,910,394us-gaap_TemporaryEquitySharesIssued
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Convertible preferred stock, par value |
$ 0.01us-gaap_TemporaryEquityParOrStatedValuePerShare
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$ 0.01us-gaap_TemporaryEquityParOrStatedValuePerShare
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Convertible preferred stock, outstanding |
0us-gaap_TemporaryEquitySharesOutstanding
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80,910,394us-gaap_TemporaryEquitySharesOutstanding
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Dividend declared value |
0us-gaap_Dividends
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0us-gaap_Dividends
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Preferred stock voting rights |
Unless an affirmative vote of 50% of the combined outstanding shares of preferred stock, voting separately as a class, is obtained, the Company shall not undertake any of the following: (i) declaration or payment of any dividend or other distribution or payment on the (or the redemption, purchase or other acquisition for value of any) capital stock of the Company or any subsidiary; (ii) any liquidation, dissolution, recapitalization or reorganization of the Company; (iii) transfer or disposition of assets or rights with a value of more than $1,000,000; and/or (iv) any amendment to the Company’s certificate of incorporation that changes or alters any of the preferences, voting powers or other rights and privileges of preferred stock.
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Percentage of affirmative vote by shareholders |
50.00%amda_PercentageOfAffirmativeVoteByShareholders
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Assets transferred to held for disposition |
1,000,000amda_AssetsTransferredToHeldForDispositionDuringPeriod
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Registration rights descriptions |
The preferred stockholders and warrant holders were granted registration rights that provide these holders the right to request, beginning 180 days after the completion of a qualifying initial public offering, that the Company file a registration statement to register under the Securities Act the common stock that would be issued upon conversion of the preferred shares or exercise of the warrants.
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Registration rights period |
180 days
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IPO |
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Class Of Stock [Line Items] |
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Common stock shares, issued |
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3,682,900us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Preferred stock, par value |
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$ 5.75us-gaap_EquityIssuancePerShareAmount / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Proceeds from issuance of common stock, net of issuance costs |
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15,400,000us-gaap_ProceedsFromIssuanceOfCommonStock / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Underwriting discounts and other offering costs |
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5,800,000us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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IPO | Underwriter Option |
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Class Of Stock [Line Items] |
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Common stock shares, issued |
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182,900us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_CounterpartyNameAxis = amda_UnderwriterOptionMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Secondary Offering Warrant |
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Class Of Stock [Line Items] |
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Common stock shares, issued |
15,479,873us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Underwriting discounts and other offering costs |
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1,700,000us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Common stock share issue price under secondary offering, per share price |
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$ 1.14us-gaap_SaleOfStockPricePerShare / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Proceeds from issuance of units, net of issuance costs |
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11,300,000amda_ProceedsFromIssuanceOfUnits / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Class of warrant or right on over allotment option |
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1,716,246amda_ClassOfWarrantOrRightOnOverAllotmentOption / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Common shares exercise price |
$ 1.48amda_CommonSharesExercisePrice / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Secondary offering warrants termination date |
Nov. 26, 2019
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Lieu of payment of the exercise provision days |
120 days
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Expected volatility rate |
135.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Expected remaining term warrant |
5 years
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Estimated fair value of the secondary offering warrants |
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10,500,000us-gaap_FairValueAdjustmentOfWarrants / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Gross derivative liabilities |
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13,000,000amda_ProceedsFromIssuanceOfUnitsGross / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Proceeds from issuance of equity |
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2,500,000us-gaap_ProceedsFromIssuanceOrSaleOfEquity / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Offering costs expensed |
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2,000,000amda_OfferingCosts / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Additional paid-in capital / (capital deficiency) |
488,000us-gaap_AdditionalPaidInCapitalCommonStock / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Unit Option, unit exercise price |
$ 1.43amda_UnitExercisePrice / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Unit Option determined to be liability, estimated fair value |
658,000amda_UnitClassifiedAsLiabilityFairValueDisclosure / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Secondary Offering Warrant | Minimum |
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Class Of Stock [Line Items] |
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Percentage of common stock exceeds exercise price |
25.00%amda_PercentageOfCommonStockExceedsExercisePrice / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Number of consecutive trading day |
20 days
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Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
130,000,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember
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100,000,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember
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Preferred stock converted to common, Value |
(161,456,000)us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
0us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember
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Convertible Preferred Stock | IPO |
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Class Of Stock [Line Items] |
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Common stock shares issued upon conversion from preferred stock |
(80,910,394)us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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80,910,394us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Preferred stock converted to common, Value |
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161,500,000us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities / us-gaap_StatementClassOfStockAxis = us-gaap_ConvertiblePreferredStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Series F Warrants [Member] | IPO |
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Class Of Stock [Line Items] |
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Number of preferred stock converted to common shares |
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67,499us-gaap_ConversionOfStockSharesConverted1 / us-gaap_StatementClassOfStockAxis = amda_SeriesFWarrantsMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Series F Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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20,710,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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Number of preferred stock converted to common shares |
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19,627,500us-gaap_ConversionOfStockSharesConverted1 / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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19,627,500us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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4,740,000us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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4,740,000us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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Convertible preferred stock, par value |
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2.00us-gaap_TemporaryEquityParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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2.00us-gaap_TemporaryEquityParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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19,627,500us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 2.00us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember
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Series A Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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5,800,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesAConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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5,365,398us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesAConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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5,365,398us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesAConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 0.60us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesAConvertiblePreferredStockMember
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Series A One Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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10,400,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesAOneConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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10,390,463us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesAOneConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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10,390,463us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesAOneConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 0.60us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesAOneConvertiblePreferredStockMember
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Series B Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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2,300,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesBConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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1,944,147us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesBConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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1,944,147us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesBConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 1.20us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesBConvertiblePreferredStockMember
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Series B One Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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3,300,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesBOneConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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3,299,141us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesBOneConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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3,299,141us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesBOneConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 1.20us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesBOneConvertiblePreferredStockMember
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Series C Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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7,900,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesCConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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6,682,562us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesCConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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6,682,562us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesCConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 2.00us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesCConvertiblePreferredStockMember
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Series C One Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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4,325,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesCOneConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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4,275,000us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesCOneConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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4,275,000us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesCOneConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 2.00us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesCOneConvertiblePreferredStockMember
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Series D Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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8,300,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesDConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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7,978,800us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesDConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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7,978,800us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesDConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 3.00us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesDConvertiblePreferredStockMember
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Series D One Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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6,300,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesDOneConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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6,145,667us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesDOneConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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6,145,667us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesDOneConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 3.00us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesDOneConvertiblePreferredStockMember
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Series E Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Convertible preferred stock, authorized |
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16,200,000us-gaap_TemporaryEquitySharesAuthorized / us-gaap_StatementClassOfStockAxis = amda_SeriesEConvertiblePreferredStockMember
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Convertible preferred stock, issued |
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15,201,716us-gaap_TemporaryEquitySharesIssued / us-gaap_StatementClassOfStockAxis = amda_SeriesEConvertiblePreferredStockMember
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Convertible preferred stock, outstanding |
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15,201,716us-gaap_TemporaryEquitySharesOutstanding / us-gaap_StatementClassOfStockAxis = amda_SeriesEConvertiblePreferredStockMember
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Convertible preferred stock liquidation preference shares |
$ 2.00us-gaap_TemporaryEquityLiquidationPreferencePerShare / us-gaap_StatementClassOfStockAxis = amda_SeriesEConvertiblePreferredStockMember
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Common Stock |
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Class Of Stock [Line Items] |
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Common stock, authorized |
250,000,000us-gaap_CommonStockSharesAuthorized / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
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150,000,000us-gaap_CommonStockSharesAuthorized / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
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Common stock shares issued upon conversion from preferred stock |
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8,029,779us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
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Preferred stock converted to common, Value |
80,000us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
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Outstanding warrants exercisable |
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159,834us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
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Issuance of common stock in connection with exercise of warrants, Shares |
9,328amda_IssuanceOfCommonStockUponExerciseOfWarrantsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
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178,516amda_IssuanceOfCommonStockUponExerciseOfWarrantsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
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Common Stock | IPO |
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Class Of Stock [Line Items] |
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Common stock shares, issued |
3,682,900us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Common stock shares issued upon conversion from preferred stock |
8,029,779us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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4,906,874us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_IPOMember
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Common Stock | Secondary Offering Warrant |
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Class Of Stock [Line Items] |
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Common stock shares, issued |
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11,441,646us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Preferred Stock |
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Class Of Stock [Line Items] |
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Outstanding warrants exercisable |
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2,344,731us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember
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Warrant | Secondary Offering Warrant |
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Class Of Stock [Line Items] |
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Common stock shares, issued |
200,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Common stock warrants, estimated fair value |
$ 115,000amda_WarrantClassifiedAsLiabilityFairValueDisclosure / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember / us-gaap_SubsidiarySaleOfStockAxis = amda_SecondaryOfferingWarrantMember
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Warrant | Series F Convertible Preferred Stock |
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Class Of Stock [Line Items] |
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Outstanding warrants exercisable |
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91,951us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
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91,951us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
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Exercise price of warrants |
$ 0.47amda_ExercisePriceOfWarrants / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
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$ 25.77amda_ExercisePriceOfWarrants / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
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Warrant expiration periods |
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5 years
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5 years
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Warrant | Series F Convertible Preferred Stock | Placement Agent |
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Class Of Stock [Line Items] |
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Outstanding warrants exercisable |
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9,311us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember
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9,311us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember
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Exercise price of warrants |
$ 0.47amda_ExercisePriceOfWarrants / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember
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$ 56.70amda_ExercisePriceOfWarrants / us-gaap_StatementClassOfStockAxis = amda_SeriesFConvertiblePreferredStockMember / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember / us-gaap_SubsidiarySaleOfStockAxis = us-gaap_PrivatePlacementMember
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Warrant expiration periods |
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5 years
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5 years
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