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Debt | 12 Months Ended
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Dec. 31, 2015
Debt Disclosure [Abstract] |
Debt | Debt MidCap Loan and Security Agreement On August 30, 2013, the Company entered into the Amended Credit Facility with MidCap. The Amended Credit Facility amended and restated the prior credit facility that the Company had with MidCap (the "Prior Credit Facility"). Pursuant to the Amended Credit Facility, the Company increased the borrowing limit from $50 million to $73 million and extended the maturity to August 2016. In July 2015, the Company further amended the Amended Credit Facility to provide for an additional term loan of $5 million. As of December 31, 2015, the Amended Credit Facility consisted of a $38 million term loan, $28 million of which was drawn at closing, the remaining $5 million of which was drawn in April 2014, a $5 million term loan drawn in July 2015 and a revolving line of credit with a maximum borrowing base of $40 million, of which $28.8 million was outstanding at December 31, 2015. The Company used the term loan proceeds of $28 million drawn at closing to repay a portion of the outstanding balance on the prior revolving line of credit. The term loan interest rate is priced at the London Interbank Offered Rate ("LIBOR") plus 8.0%, subject to a 9.5% floor, and the revolving line of credit interest rate bears interest at LIBOR plus 6.0%, reset monthly. At December 31, 2015, the revolving line of credit carries an interest rate of 6.2% and the term loan carries an interest rate of 9.5%. The borrowing base is determined, from time to time, based on the value of domestic eligible accounts receivable and domestic eligible inventory. As collateral for the Amended Credit Facility, the Company granted MidCap a security interest in substantially all of its assets, including all accounts receivable and all securities evidencing its interests in its subsidiaries. In addition to monthly payments of interest, monthly repayments of $0.3 million of the principal for the term loan were made beginning in October 2013, increasing to $0.5 million beginning in October 2014, and are due through maturity, with the remaining principal due upon maturity. In connection with the execution of the Amended Credit Facility, the Company incurred approximately $0.4 million in costs, which were capitalized as debt issuance costs within the consolidated balance sheet as of December 31, 2014. At December 31, 2015, $0.2 million re mains as unamortized debt issuance costs related to the prior and Amended Credit Facility within the consolidated balance sheet, which will be amortized over the remaining term of the Amended Credit Facility. In February 2013, the Company and MidCap entered into a first amendment to the Credit Facility (the "First Amendment to the Credit Facility”). The First Amendment to the Credit Facility allowed the Company to exclude payments related to an acquisition and a settlement agreement from calculation of the fixed charge coverage ratio and the senior leverage ratio. In conjunction with the First Amendment to the Credit Facility, the Company paid MidCap a fee of $0.1 million. On March 17, 2014, the Company entered into a first amendment to the Amended Credit Facility with MidCap (the "First Amendment to the Amended Credit Facility"). Under the First Amendment to the Amended Credit Facility, MidCap gave the Company its consent to enter into the Facility Agreement and make settlement payments in connection with the Orthotec litigation. The First Amendment to the Amended Credit Facility also added a total leverage ratio financial covenant. The Amended Credit Facility includes traditional lending and reporting covenants including a fixed charge coverage ratio, a senior leverage ratio and a total leverage ratio to be maintained by the Company. The First Amendment to the Amended Credit Facility added a total leverage ratio financial covenant.The Amended Credit Facility also provides for several event of default provisions, such as payment default and insolvency conditions, which could cause interest to be charged at a rate which is up to five percentage points above the rate effective immediately before the event of default or result in MidCap’s right to declare all outstanding obligations immediately due and payable. The Company was in compliance with all of the covenants of the Amended Credit Facility as of December 31, 2015, except for the non-compliance disclosed in Note 1. The Company has obtained a waiver from MidCap to cure the breach of the fixed charge coverage ratio covenant for each of June, August, September, October, November and December of 2015 and January 2016. There is no assurance that the Company will be in compliance with the financial covenants of the Amended Credit Facility in the future. During the year ended December 31, 2015, the Company repaid $144.6 million and drew an additional $141.6 million on its working capital line of credit under the Amended Credit Facility. The balance of the line of credit and the term loan as of December 31, 2015 and 2014 was $28.8 million and $28.0 million, respectively. Amortization of the debt discount and debt issuance costs, accretion of the finance charge and non-cash extinguishment of debt costs, which were recorded as non-cash interest expense, totaled $0.3 million, $0.3 million and $0.2 million for the years ended December 31, 2015, 2014 and 2013, respectively. Interest expense for the term loans and the Company’s working capital line of credit, excluding debt discount and debt issuance cost amortization, accretion of the additional finance charge and extinguishment of debt costs, totaled $5.3 million, $5.3 million and $3.6 million for the years ended December 31, 2015, 2014 and 2013, respectively. On March 11, 2016, the Company entered into a third amendment and waiver to the Amended Credit Facility with MidCap (the "Third Amendment to the Amended Credit Facility"). The Third Amendment to the Amended Credit Facility extends the maturity date of the Amended Credit Facility from August 30, 2016 to December 31, 2016 and contains an amendment fee in the amount of $0.5 million, which is due and payable at the earlier of the termination of the Amended Credit Facility or the maturity date. The Third Amendment also contains a waiver of the December 2015 defaults under the Facility Agreement, provides a waiver for the fixed charge coverage ratio for January 2016 and eliminates the fixed charge coverage ratio covenant for February 2016. Deerfield Facility Agreement On March 17, 2014, the Company entered into the Facility Agreement with Deerfield, pursuant to which Deerfield agreed to loan the Company up to $50 million, subject to the terms and conditions set forth in the Facility Agreement. Under the terms of the Facility Agreement, the Company had the option, but was not required, upon certain conditions to draw the entire amount available under the Facility Agreement, at any time until January 30, 2015 (the “Draw Period”), provided that the initial draw be used for a portion of the payments made in connection with the Orthotec settlement described in Note 6 below. Following such initial draw down, the Company was permitted to draw down additional amounts under the Facility Agreement up to an aggregate $15 million for working capital or general corporate purposes in $2.5 million increments until the end of the Draw Period. The Company agreed to pay Deerfield, upon each disbursement of funds under the Facility Agreement, a transaction fee equal to 2.5% of the principal amount of the funds disbursed. Amounts borrowed under the Facility Agreement bear interest at a rate of 8.75% per annum and are payable on the third, fourth and fifth anniversary date of the first amount borrowed under the Facility Agreement, with the final payment due on March 20, 2019. In connection with the execution of the Facility Agreement on March 17, 2014, the Company issued to Deerfield warrants to purchase an aggregate of 6,250,000 shares of the Company’s common stock (the “Initial Warrants”) (See Note 8). Additionally, the Company agreed that upon each disbursement under the Facility Agreement, the Company would issue to Deerfield warrants to purchase up to 10,000,000 shares of the Company’s common stock, in proportion to the amount of draw compared to the total $50 million facility (the "Draw Warrants") (See Note 8). On March 20, 2014, the Company made an initial draw of $20.0 million under the Facility Agreement and received net proceeds of $19.5 million to fund the portion of the Orthotec settlement payment obligations that were due in 2014. The $0.5 million transaction fee was recorded as a debt discount and is being amortized over the term of the draw, which ends March 20, 2019. In connection with this borrowing, the Company issued Draw Warrants to purchase 4,000,000 shares of common stock, which were valued at $4.7 million and recorded as a debt discount and is being amortized over the term of the draw. Additionally, $2.3 million of the value of the Initial Warrants was reclassified as a debt discount and is being amortized through interest expense over the term of the debt using the effective interest method. On November 21, 2014, the Company made a second draw of $6.0 million under the Facility Agreement and received net proceeds of $5.9 million to fund the portion of the Orthotec settlement payments through 2016. The $0.2 million transaction fee was recorded as a debt discount and is being amortized over the remaining term of the draw, which ends March 20, 2019. In connection with this borrowing, the Company issued Draw Warrants to purchase 1,200,000 shares of common stock, which were valued at $0.9 million and recorded as a debt discount and is being amortized over the term of the debt using the effective interest method. On July 10, 2015, the Company entered into a First Amendment to the Facility Agreement (the “Facility Agreement First Amendment”), with Deerfield. The Facility Agreement First Amendment permitted the Company, among other things, to enter into and borrow the additional $5 million under the term loan in July 2015 under the Second Amendment to the Amended Credit Facility. As of December 31, 2015, Orthotec settlement payments of $23.0 million have been made, leaving remaining proceeds from the funds borrowed under the Facility Agreement of $2.4 million. These proceeds are classified as short-term restricted cash, as their use is limited by the terms of the Facility Agreement to the payments of amounts due under the Orthotec litigation settlement agreement. Additionally, a payment of $1.1 million was made on January 1, 2016. The amounts borrowed under the Facility Agreement, which total $26.0 million in principal as of December 31, 2015, are due in three equal annual payments beginning March 20, 2017. Additionally, $0.2 million of the value of the Initial Warrants was reclassified as a debt discount and is being amortized through interest expense over the term of the debt using the effective interest method. The Facility Agreement contains various representations and warranties, and affirmative and negative covenants, customary for financings of this type, including restrictions on the ability of the Company and its subsidiaries to incur additional indebtedness or liens on its assets, except as permitted under the Facility Agreement. As security for our repayment of our obligations under the Facility Agreement, the Company granted to Deerfield a security interest in substantially all of our property and interests in property, which is subordinated to the security interest granted under the Amended Credit Facility. As a result of the Company's non-compliance with the MidCap fixed charge coverage ratio covenant, the Company was in cross-default of the Facility Agreement, for which the Company received a waiver from Deerfield for the months of June, August, September, October, November and December of 2015. There is no assurance that the Company will be in compliance with the financial covenants of the Amended Credit Facility in the foreseeable future, which would result in a cross-default under the Facility Agreement in which case Deerfield would have the right to call the debt outstanding under the Facility Agreement due immediately. Accordingly, the amounts borrowed under the Facility Agreement are presented on the consolidated balance sheet as of December 31, 2015 under current liabilities, net of unamortized issuance discount. On February 5, 2016, the Company entered into a Limited Waiver and Second Amendment to the Facility Agreement (the “Second Amendment”) with Deerfield. The Second Amendment increases the interest rate under the Facility Agreement from 8.75% per annum to 14.75% per annum. In addition, the Second Amendment provides that the Company may elect to have (i) until August 30, 2016, six percent (6%), and (ii) thereafter, three percent (3%), in each case, of the interest on the outstanding principal amount under the Facility Agreement paid in kind, which would be added to the outstanding principal amount under the Facility Agreement and bear interest at the interest rate of 14.75% per annum (the “PIK Interest”). All accrued and unpaid PIK Interest is due and payable when the outstanding amounts under the Facility Agreement are due and payable thereunder or are fully repaid, whichever occurs first. The Second Amendment also contains an amendment fee in the amount of $0.6 million, which is due and payable in installments of $0.2 million on each of the third, fourth and fifth anniversaries of the Facility Agreement; provided, that all unpaid amendment fees shall be due and payable when the outstanding amounts under the Facility Agreement are due and payable or are fully repaid, whichever occurs first. The Second Amendment also changes the date March 31, 2017 to March 31, 2018, as the date through which the Company must pay interest in the event the Company prepays amounts outstanding under the Facility Agreement prior to such date. The Second Amendment also contains a waiver of the defaults under the Facility Agreement discussed in Note 1. Other Debt Agreements The Company has various capital lease arrangements. The leases bear annual interest at rates ranging from 6.6% to 9.6%, are generally due in monthly principal and interest installments, are collateralized by the related equipment, and have various maturity dates through September 2018. Long-term debt consists of the following (in thousands):
| December 31,
| 2015 |  | 2014
Amended Credit Facility with MidCap | $ | 56,799 |  |  | $ | 60,390 |
Facility Agreement with Deerfield | 26,000 |  |  | 26,000 |
Note payable related to software license purchases | 189 |  |  | 250 |
Financing agreements for premiums on insurance policies | 1,599 |  |  | 1,580 |
Total | 84,587 |  |  | 88,220 |
Add: capital leases (See Note 6) | 1,277 |  |  | 1,784 |
Less: debt discount | (5,279 | ) |  | (7,331 | )
Total | 80,585 |  |  | 82,673 |
Less: current portion of long-term debt | (80,105 | ) |  | (8,076 | )
Total long-term debt, net of current portion | $ | 480 |  |  | $ | 74,597 |
Principal payments on debt are as follows as of December 31, 2015 (in thousands):
Year Ending December 31, |
2016 (1) | $ | 58,587 |
2017 (1) | 8,667 |
2018 (1) | 8,667 |
2019 (1) | 8,666 |
Total | 84,587 |
Add: capital lease principal payments | 1,277 |
Less: debt discount | (5,279 | )
Total | 80,585 |
Less: current portion of long-term debt (1) | (80,105 | )
Long-term debt, net of current portion | $ | 480 |
(1) The amounts above are presented based on the contractual payment schedule in each of the respective agreements. However, the debt balances under the Amended Credit Facility and Facility Agreement were callable as of December 31, 2015 due to the event of default (See Note 1) and therefore, are presented as a current liability in the consolidated balance sheet as of December 31, 2015.

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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 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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