Annual report pursuant to Section 13 and 15(d) 12-31-2014

Debt and Line of Credit - Outstanding Long-Term Debt (Details)

v2.4.1.9
Debt and Line of Credit - Outstanding Long-Term Debt (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Jun. 30, 2014
Dec. 31, 2012
Debt Instrument [Line Items]        
Total debt, Outstanding Principal $ 24,500us-gaap_DebtInstrumentFaceAmount $ 18,000us-gaap_DebtInstrumentFaceAmount    
Less: Current portion, Outstanding Principal (20,000)amda_DebtInstrumentFaceAmountCurrent (18,000)amda_DebtInstrumentFaceAmountCurrent    
Long-term debt, Outstanding Principal 4,500amda_DebtInstrumentFaceAmountNoncurrent      
Total debt, Unamortized Discount (2,369)us-gaap_DebtInstrumentUnamortizedDiscount (75)us-gaap_DebtInstrumentUnamortizedDiscount    
Less: Current portion, Unamortized Discount 930amda_DebtInstrumentUnamortizedDiscountCurrent 75amda_DebtInstrumentUnamortizedDiscountCurrent    
Long-term debt, Unamortized Discount (1,439)amda_DebtInstrumentUnamortizedDiscountNoncurrent      
Total debt, Net Carrying Amount 22,131us-gaap_LongTermDebt 17,925us-gaap_LongTermDebt    
Less: Current portion, Net Carrying Amount (19,070)us-gaap_LongTermDebtCurrent (17,925)us-gaap_LongTermDebtCurrent    
Long-term debt 3,061us-gaap_LongTermDebtNoncurrent      
G E Secured Lending Facility        
Debt Instrument [Line Items]        
Total debt, Outstanding Principal   18,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= amda_GESecuredLendingFacilityMember
  18,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= amda_GESecuredLendingFacilityMember
Total debt, Unamortized Discount   (75)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= amda_GESecuredLendingFacilityMember
   
Total debt, Net Carrying Amount   17,925us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= amda_GESecuredLendingFacilityMember
   
Less: Current portion, Net Carrying Amount     (14,300)us-gaap_LongTermDebtCurrent
/ us-gaap_DebtInstrumentAxis
= amda_GESecuredLendingFacilityMember
 
Hercules Term Loan        
Debt Instrument [Line Items]        
Total debt, Outstanding Principal 20,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= amda_HerculesTermLoanMember
  20,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= amda_HerculesTermLoanMember
 
Total debt, Unamortized Discount (930)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= amda_HerculesTermLoanMember
     
Total debt, Net Carrying Amount 19,070us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= amda_HerculesTermLoanMember
     
Convertible Note        
Debt Instrument [Line Items]        
Total debt, Outstanding Principal 4,500us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= amda_MagnaConvertibleNotesMember
     
Total debt, Unamortized Discount (1,439)us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_DebtInstrumentAxis
= amda_MagnaConvertibleNotesMember
     
Total debt, Net Carrying Amount $ 3,061us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= amda_MagnaConvertibleNotesMember