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Long-term Debt (Additional Information) (Details) (USD $) In Millions, except Share data, unless otherwise specified | 0 Months Ended |
--- | --- | ---
May 08, 2013 | Sep. 18, 2013
Debt Instrument [Line Items] |  |
Loan, amount | $ 15 |
Term for interest only payments | 12 months |
Interest payments at the fixed coupon rate | 8.45% |
Term for principal and interest payments | 30 months |
Cash facility fee percentage | 1.00% |
Cash final payment percentage | 5.50% |
Warrant term | 7 years |
Number of shares availabe from warrants |  | 0.35
Exercise price (usd per share) | 2.47 | 2.50
Duration of average market price used for warrant exercise price | 20 days |
Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Number of shares availabe from warrants | 182,186 |
First Tranche [Member] |  |
Debt Instrument [Line Items] |  |
Loan, amount | 10 |
Second Tranche [Member] |  |
Debt Instrument [Line Items] |  |
Loan, amount | $ 5 |

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- Definition The exercise price of each class of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)(4)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Subparagraph 4 -Article 4 + Details
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- Definition Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number APB14-1 -Paragraph 31 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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