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Long-term Debt | 12 Months Ended
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Dec. 31, 2013
Debt Disclosure [Abstract] |
Long-term Debt | Long-term Debt On May 8, 2013 we entered into a loan and security agreement with Oxford Finance LLC, as collateral agent, and related lenders under which we may borrow up to $15 million (the “Loan”) in two tranches. We borrowed the first tranche of $10 million on May 8, 2013, and may borrow the second tranche of $5 million on or before May 31, 2014, subject to our achievement of certain operational and financial conditions. There is no assurance these conditions will be achieved. The Loan payments will include 12 months of interest-only payments at the fixed coupon rate of 8.45%, followed by 30 months of amortization of principal and interest until maturity in November 2016. In connection with the Loan, we paid the lender a 1% cash facility fee and a 5.5% cash final payment and granted to the lenders seven-year warrants to purchase up to 182,186 shares of our common stock at an exercise price of $2.47, which equaled a 20-day average market price of our common stock prior to the date of the grant. As of December 31, 2013, future schedule principal payments to be made on long-term debt are as follows (in thousands):
For the year ending December 31, 2014 |  | $ | 2,149 |
2015 |  | 3,938 |
2016 |  | 3,913 |
Total future principal payments |  | 10,000 |
Unamortized debt issuance costs (net of fair value of warrants issued) |  | (108 | )
Total debt |  | 9,892 |
Less current portion |  | (2,149 | )
Total long-term debt, net |  | $ | 7,743 |

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20,22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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