Fair Value Measurements and Marketable Securities - Additional Information (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2013
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Dec. 31, 2014
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Feb. 28, 2014
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | |||
Financial assets measured on a recurring basis | $ 0us-gaap_AssetsFairValueDisclosureRecurring | $ 0us-gaap_AssetsFairValueDisclosureRecurring | |
Fair value assets, level 1 to level 2 transfers | 0us-gaap_FairValueAssetsLevel1ToLevel2TransfersAmount | 0us-gaap_FairValueAssetsLevel1ToLevel2TransfersAmount | |
Fair value liabilities, level 1 to level 2 transfers | 0us-gaap_FairValueLiabilitiesLevel1ToLevel2TransfersAmount | 0us-gaap_FairValueLiabilitiesLevel1ToLevel2TransfersAmount | |
Fair value assets, level 2 to level 1 transfers | 0us-gaap_FairValueAssetsLevel2ToLevel1TransfersAmount | 0us-gaap_FairValueAssetsLevel2ToLevel1TransfersAmount | |
Fair value liabilities, level 2 to level 1 transfers | 0us-gaap_FairValueLiabilitiesLevel2ToLevel1TransfersAmount | 0us-gaap_FairValueLiabilitiesLevel2ToLevel1TransfersAmount | |
Marketable securities | 0us-gaap_MarketableSecurities | 0us-gaap_MarketableSecurities | |
Proceeds from maturities and sales marketable securities | 2,700,000us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities | ||
Realized gains from marketable securities | $ 2,000us-gaap_MarketableSecuritiesRealizedGainLoss | ||
Preferred Stock | |||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | |||
Outstanding warrants exercisable |
2,344,731us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |
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Outstanding warrants exercisable to preferred shares |
0us-gaap_ClassOfWarrantOrRightOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember |
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Common Stock | |||
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] | |||
Outstanding warrants exercisable |
159,834us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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- Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. No definition available.
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- Definition
Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of transfers of liabilities measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents the total realized gain (loss) included in earnings for the period as a result of selling marketable securities categorized as trading, available-for-sale, or held-to-maturity. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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