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Long-term Obligations | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Long-term Obligations |
8. | Long-term Obligations
On May 29, 2015, we entered into the Loan and Security Agreement, (the “Loan and Security Agreement”), with Oxford, pursuant to which Oxford funded an aggregate principal amount of $17.7 million (“Term Loan”), subject to the terms and conditions set forth in the Loan and Security Agreement. The Term Loan accrues interest at a floating rate of at least 8.95% per annum, comprised of three-month LIBOR rate with a floor of 1.00% plus 7.95%. Pursuant to the Loan and Security Agreement, we were previously required to make interest only payments through June 1, 2016 and thereafter we were required to make payments of principal and accrued interest in equal monthly installments sufficient to amortize the Term Loan through June 1, 2019, the maturity date. On February 23, 2016, we received an acknowledgement and agreement from Oxford related to the positive data on our U.S. ACT-OA clinical trial. As a result, pursuant to the Loan and Security Agreement, the period for which we are required to make interest-only payments was extended from July 1, 2016 to January 1, 2017. All unpaid principal and interest with respect to the Term Loan is due and payable in full on June 1, 2019. At maturity of the Term Loan, or earlier repayment in full following voluntary prepayment or upon acceleration, we are required to make a final payment in an aggregate amount equal to approximately $1.1 million. In connection with the Term Loan, on May 29, 2015, we issued to Oxford warrants to purchase an aggregate of 94,441 shares of our common stock at an exercise price of $10.35 per share. These warrants became exercisable as of November 30, 2015 and will expire on May 29, 2025 and, following the authoritative accounting guidance, are equity classified and its respective fair value was recorded as a discount to the debt. On September 20, 2017, we entered into an amendment to the Term Loan, pursuant to which, among other things, Oxford and the Lenders agreed to reduce the minimum liquidity covenant level originally at $5 million to $1.5 million. The amendment also extended the interest-only period under the Loan Agreement through August 1, 2018, as the Company successfully closed on a financing and received unrestricted net cash proceeds in excess of $5 million before December 29, 2017. The Term Loan, as amended, is collateralized by a security interest in substantially all of the Company’s existing and subsequently acquired assets, including its intellectual property assets, subject to certain exceptions set forth in the Loan and Security Agreement, as amended. The intellectual property asset collateral will be released upon the Company achieving certain liquidity level when the total principal outstanding under the Loan Agreement is less than $3 million. As of December 31, 2017, we were in compliance with all of the debt covenants under the Loan and Security Agreement. The Term Loan Agreement contains customary indemnification obligations and customary events of default, including, among other things, our failure to fulfill certain obligations under the Term Loan, as amended, and the occurrence of a material adverse change, which is defined as a material adverse change in our business, operations, or condition (financial or otherwise), a material impairment of the prospect of repayment of any portion of the loan. In the event of default by us or a declaration of material adverse change by our lender, under the Term Loan, the lender would be entitled to exercise its remedies thereunder, including the right to accelerate the debt, upon which we may be required to repay all amounts then outstanding under the Term Loan, which could materially harm our financial condition. As of December 31, 2017, we were in compliance with all covenants under the Term Loan and have not received any notification or indication from the Lenders to invoke the material adverse change clause. However, due to our current cash flow position and the substantial doubt about our ability to continue as a going concern, the entire principal amount of the Term Loan has been reclassified to short-term. We will continue to evaluate the debt classification on a quarterly basis and evaluate for reclassification in the future should our financial condition improve. Additional details relating to the outstanding Term Loan as of December 31, 2017 and 2016 are presented in the following table (in thousands):
Year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Origination Date |  | Original Loan Amount |  |  | Interest Rate** |  |  | Current Monthly Payment*** |  |  | Original Term |  | Remaining Principal (Face Value) |
May 2015 |  | $ | 17,700 |  |  |  | 8.95 | % |  | $ | 100 |  |  | 48 Months |  | $ | 12,980 |
Year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Origination Date |  | Original Loan Amount |  |  | Interest Rate** |  |  | Current Monthly Payment* |  |  | Original Term |  | Remaining Principal (Face Value) |
May 2015 |  | $ | 17,700 |  |  |  | 8.95 | % |  | $ | 136 |  |  | 48 Months |  | $ | 17,700 |
*Monthly payment as of December 2016, which reflects interest only **3 month LIBOR rate with a floor of 1% plus 7.95% ***Monthly payment as of December 2017, which reflects interest only As of December 31, 2017, the future contractual principal and final fee payments on all of our debt and capital lease obligations are as follows (as thousands):
Years Ending December 31, |  |  |  |
2018 |  | $ | 5,192 |
2019 |  |  | 8,877 |
Total |  | $ | 14,069 |
Reconciliation of Face Value to Book Value as of December 31, 2017 |  |  |  |
Total debt and lease obligations, including final payment fee (Face Value) |  | $ | 14,069 |
Less: Debt discount |  |  | (445 | )
Total obligation |  | $ | 13,624 |
Our interest expense for the years ended December 31, 2017 and 2016 was $2.0 million and $2.6 million, respectively. Interest expense is calculated using the effective interest method, therefore it is inclusive of non-cash amortization in the amount of $0.7 million and $1.0 million, respectively, related to the amortization of the debt discount, capitalized loan costs, and accretion of final payment.

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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 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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