Notes Receivable and Other Long-term Receivables	12 Months Ended
Dec. 31, 2016
Receivables [Abstract]
Notes and Other Long-term Receivables	Notes and Other Long-Term Receivables Notes and other long-term receivables included the following significant agreements: Wellstat Diagnostics Note Receivable and Credit Agreement In March 2012, the Company executed a $7.5 million two-year senior secured note receivable with the holders of the equity interests in Wellstat Diagnostics, LLC a/k/a Defined Diagnostics, LLC (“Wellstat Diagnostics”). In addition to bearing interest at 10% per annum, the note receivable gave the Company certain rights to negotiate for certain future financing transactions. In August 2012, the Company and Wellstat Diagnostics amended the note receivable, providing a senior secured note receivable of $10.0 million, bearing interest at 12% per annum, to replace the original $7.5 million note receivable. This $10.0 million note receivable was repaid on November 2, 2012, using the proceeds of the $40.0 million credit agreement entered into with the Company on the same date, as described below. On November 2, 2012, the Company and Wellstat Diagnostics entered into a $40.0 million credit agreement pursuant to which the Company was to accrue quarterly interest payments at the rate of 5% per annum (payable in cash or in kind). In addition, the Company was to receive quarterly royalty payments based on a low double-digit royalty rate of Wellstat Diagnostics’ net revenues, generated by the sale, distribution or other use of Wellstat Diagnostics’ products, if any, commencing upon the commercialization of its products. In January 2013, the Company was informed that, as of December 31, 2012, Wellstat Diagnostics had used funds contrary to the terms of the credit agreement and breached Sections 2.1.2 and 7 of the credit agreement. The Company sent Wellstat Diagnostics a notice of default on January 22, 2013, and accelerated the amounts owed under the credit agreement. In connection with the notice of default, the Company exercised one of its available remedies and transferred approximately $8.1 million of available cash from a bank account of Wellstat Diagnostics to the Company and applied the funds to amounts due under the credit agreement. On February 28, 2013, the parties entered into a forbearance agreement whereby the Company agreed to refrain from exercising additional remedies for 120 days while Wellstat Diagnostics raised funds to capitalize the business and the parties attempted to negotiate a revised credit agreement. The Company agreed to provide up to $7.9 million to Wellstat Diagnostics to fund the business for the 120-day forbearance period under the terms of the forbearance agreement. Following the conclusion of the forbearance period that ended on June 28, 2013, the Company agreed to forbear its exercise of remedies for additional periods of time to allow the owners and affiliates of Wellstat Diagnostics to complete a pending financing transaction. During such forbearance period, the Company provided approximately $1.3 million to Wellstat Diagnostics to fund ongoing operations of the business. During the year ended December 31, 2013, approximately $8.7 million was advanced pursuant to the forbearance agreement. On August 15, 2013, the owners and affiliates of Wellstat Diagnostics completed a financing transaction to fulfill Wellstat Diagnostics’ obligations under the forbearance agreement. On August 15, 2013, the Company entered into an amended and restated credit agreement with Wellstat Diagnostics. The Company determined that the new agreement should be accounted for as a modification of the existing agreement. Except as otherwise described herein, the material terms of the amended and restated credit agreement are substantially the same as those of the original credit agreement, including quarterly interest payments at the rate of 5% per annum (payable in cash or in kind). In addition, the Company was to continue to receive quarterly royalty payments based on a low double-digit royalty rate of Wellstat Diagnostics’ net revenues. However, pursuant to the amended and restated credit agreement: (i) the principal amount was reset to approximately $44.1 million, which was comprised of approximately $33.7 million original loan principal and interest, $1.3 million term loan principal and interest and $9.1 million forbearance principal and interest; (ii) the specified internal rates of return increased; (iii) the default interest rate was increased; (iv) Wellstat Diagnostics’ obligation to provide certain financial information increased in frequency to monthly; (v) internal financial controls were strengthened by requiring Wellstat Diagnostics to maintain an independent, third-party financial professional with control over fund disbursements; (vi) the Company waived the existing events of default; and (vii) the owners and affiliates of Wellstat Diagnostics were required to contribute additional capital to Wellstat Diagnostics upon the sale of an affiliate entity. The amended and restated credit agreement had an ultimate maturity date of December 31, 2021 (but has subsequently been accelerated as described below). When the principal amount was reset, a $2.5 million reduction of the carrying value was recorded as a financing cost as a component of “Interest and other income, net”. The new carrying value is lower as a function of the variable nature of the internal rate of return to be realized by the Company based on when the note was to be repaid. The internal rate of return calculation, although increased, was reset when the credit agreement was amended and restated. In June 2014, the Company received information from Wellstat Diagnostics showing that it was generally unable to pay its debts as they became due, constituting an event of default under the amended and restated credit agreement. Wellstat Diagnostics entered into a transaction involving another lender, pursuant to which Wellstat Diagnostics obtained additional short-term funding for its operations. At the same time, the Company entered into the first amendment to amended and restated credit agreement with Wellstat Diagnostics. The material terms of the amendment included the following: (1) Wellstat Diagnostics acknowledged that an event of default had occurred; (2) the Company agreed to forbear from immediately enforcing its rights for up to 60 days, so long as the other lender provided agreed levels of interim funding to Wellstat Diagnostics; and (3) the Company obtained specified additional information rights with regard to Wellstat Diagnostics’ financial matters and investment banking activities. On August 5, 2014, the Company received notice that the short-term funding being provided pursuant to the agreement with the other lender entered into during June 2014, was being terminated. Wellstat Diagnostics remained in default because it was still unable to pay its debts as they became due. Accordingly, the Company delivered a notice of default (the “Wellstat Diagnostics Borrower Notice”). The Wellstat Diagnostics Borrower Notice accelerated all obligations under the amended and restated credit agreement and demanded immediate payment in full in an amount equal to approximately $53.9 million, (which amount, in accordance with the terms of the amended and restated credit agreement, included an amount that, together with interest and royalty payments already made to the Company, would generate a specified internal rate of return to the Company), plus accruing fees, costs and interest, and demanded that Wellstat Diagnostics protect and preserve all collateral securing its obligations. On August 7, 2014, the Company delivered a notice (the “Wellstat Diagnostics Guarantor Notice”) to each of Samuel J. Wohlstadter, Nadine H. Wohlstadter, Duck Farm, Inc., Hebron Valley Farms, Inc., HVF, Inc., Hyperion Catalysis EU Limited, Hyperion, NHW, LLC, Wellstat AVT Investment, LLC, Wellstat Biocatalysis, LLC, Wellstat Biologics Corporation, Wellstat Diagnostics, Wellstat Immunotherapeutics, LLC, Wellstat Management Company, LLC, Wellstat Opthalmics Corporation, Wellstat Therapeutics Corporation, Wellstat Therapeutics EU Limited, Wellstat Vaccines, LLC and SJW Properties, Inc., the guarantors of Wellstat Diagnostics’ obligations to the Company (collectively, the “Wellstat Diagnostics Guarantors”) under the credit agreement. The Wellstat Diagnostics Guarantor Notice included a demand that the guarantors remit payment to the Company in the amount of the outstanding obligations. The guarantors include certain affiliates and related companies of Wellstat Diagnostics, including Wellstat Therapeutics and Wellstat Diagnostics’ stockholders. On August 21, 2014, the Company entered into the second amendment to the amended and restated credit agreement with Wellstat Diagnostics, which amendment provided for the Company to make a discretionary advance to Wellstat Diagnostics. On September 24, 2014, the Company filed an ex-parte petition for appointment of receiver with the Circuit Court of Montgomery County, Maryland (“the Wellstat Diagnostics Petition”), which was granted on the same day. The order granting the Wellstat Diagnostics Petition authorizes the receiver to take immediate possession of the physical assets of Wellstat Diagnostics, with the purpose of holding, protecting, insuring, managing and preserving the business of Wellstat Diagnostics and the value of the Company’s collateral. Wellstat Diagnostics has remained in operation during the period of the receivership with incremental additional funding from the Company. On November 4, 2014, the Company entered into the third amendment to the amended and restated credit agreement with Wellstat Diagnostics. The amendment provides that additional funding, if any, to be made by the Company is conditioned upon the agreement by Wellstat Diagnostics to make certain operational changes within Wellstat Diagnostics, which the Company believes will allow the receiver to more efficiently optimize the value of the collateral. During the second quarter of 2015, the receiver initiated a process for a public sale of the assets of Wellstat Diagnostics and retained the investment banking firm of Duff & Phelps to organize and manage the sale process. The receiver filed a “Motion for Approval of Sale Procedures” with the Circuit Court for Montgomery County, Maryland, which is the court having jurisdiction over the receivership and a hearing was held on July 22, 2015, at which time arguments were heard from interested parties regarding the sale procedures. No significant substantive disagreements between the parties regarding the sale procedures remained after the hearing and a decision approving the receiver’s sale procedures was made in the third quarter of 2015. The Company submitted a credit bid for the Wellstat Diagnostic assets at a value corresponding to some portion of the outstanding amount due under the amended and restated credit agreement which is subject to court approval. A hearing was scheduled in the Maryland Circuit Court for April 13, 2016 to hear the Receiver’s motion to approve the credit bid sale to the Company. However, on April 12, 2016, Wellstat Diagnostics changed its name to Defined Diagnostics, LLC and filed for bankruptcy under Chapter 11 in the United States Bankruptcy Court in the Southern District of New York. The filing of the bankruptcy case stays the proceedings in the Maryland Circuit Court pursuant to the automatic stay provisions of the Bankruptcy Code. On June 15, 2016, in response to a Motion to Dismiss filed by the Company alleging, among other things, that the New York Bankruptcy Court is not a proper venue for Defined Diagnostics to file for bankruptcy under Chapter 11, the New York Bankruptcy Court dismissed and transferred the action to the United States Bankruptcy Court in Delaware. On August 2, 2016 the Delaware Bankruptcy Court announced its decision to grant the Company’s motion to dismiss the chapter 11 petition with prejudice as a bad faith filing, which resulted in a lifting of the stay on the receivership sale in the Maryland Circuit Court. A hearing has been scheduled for December 22, 2016, in front of the Maryland Circuit Court related to the Company’s credit bid for Wellstat Diagnostics’ assets. On September 4, 2015, the Company filed in the Supreme Court of New York a motion for summary judgment in lieu of complaint which requested that the court enter judgment against certain of the Wellstat Diagnostics Guarantors for the total amount due on the Wellstat Diagnostics debt, plus all costs and expenses including lawyers’ fees incurred by the Company in enforcement of the related guarantees. On September 23, 2015, the Company filed in the same court an ex parte application for a temporary restraining order and order of attachment of the Wellstat Diagnostics Guarantor defendants’ assets. At a hearing on September 24, 2015, regarding the Company’s request for a temporary restraining order, the court ordered that the Company’s request for attachment and for summary judgment would be heard at a hearing on November 5, 2015. Although the court denied the Company’s request for a temporary restraining order at the hearing on September 24, 2015, it ordered that assets of the Wellstat Diagnostics Guarantor defendants should be held in status quo ante and only used in the normal course of business pending the outcome of the matters under consideration at the hearing. On July 29, 2016, the Supreme Court of New York issued its Memorandum of Decision granting the Company’s motion for summary judgment and denying the Wellstat Diagnostics Guarantors’ cross-motion for summary judgment. The Supreme Court of New York held that the Wellstat Diagnostics Guarantor defendants are liable for all “Obligations” owed by Wellstat Diagnostics to the Company. It did not set a specific dollar amount due, but ordered that a judicial hearing officer or special referee be designated to determine the amount of the Obligations owing, and awarded the Company its attorneys’ fees and costs in an amount to be determined. On July 29, 2016, the Wellstat Diagnostics Guarantor defendants filed a notice of appeal from the Memorandum of Decision to the Appellate Division of the Supreme Court of New York. On February 14, 2017, the Appellate Division of the Supreme Court of New York reversed on procedural grounds the portion of the Memorandum of Decision granting the Company summary judgment in lieu of complaint, but affirmed the portion of the Memorandum of Decision denying the Wellstat Diagnostics Guarantor defendants’ motion for summary judgment in which they sought a determination that the guarantees had been released. As a result, the litigation has been remanded to the Supreme Court of New York to proceed on the Company’s claims as a plenary action. On September 1, 2016, the Company filed a motion for relief pursuant to New York law (i) restraining the Wellstat Diagnostics Guarantor defendants from making any sale, assignment, transfer or interference in any of their property, or from paying over or otherwise disposing of any debt and (ii) authorizing the Company to examine the assets of each of the Wellstat Diagnostics Guarantor defendants. On October 5, 2016, the Wellstat Diagnostics Guarantor defendants filed a motion for leave of the court to assert counterclaims against the Company, and certain officers and consultants of the Company, for (i) breach of fiduciary duty, (ii) intentional interference with prospective economic advantage, (iii) breach of the duty of good faith and fair dealing and negligent misrepresentation. A hearing date on the motion to assert counterclaims has yet to be set. On October 14, 2016, the Company sent a notice of default and reference to foreclosure proceedings to certain of the Wellstat Diagnostics Guarantors which are not defendants in the New York action, but which are owners of real estate assets over which a deed of trust in favor of the Company securing the guarantee of the loan to Wellstat Diagnostics had been executed. On October 22, 2015, certain of the Wellstat Diagnostics Guarantors filed a complaint against the Company in the Supreme Court of New York seeking a declaratory judgment that certain contractual arrangements entered into between the parties subsequent to Wellstat Diagnostics’ default, and which relate to a split of proceeds in the event that the Wellstat Diagnostics Guarantors voluntarily monetize any assets that are the Company’s collateral, is of no force or effect. Through the period ended December 31, 2016, the Company has advanced to Wellstat Diagnostics $18.4 million to fund the ongoing operations of the business and other associated costs. This funding has been expensed as incurred. Effective April 1, 2014, and as a result of the event of default, the Company determined the loan to be impaired and it ceased to accrue interest revenue. At that time and as of December 31, 2016, it has been determined that an allowance on the carrying value of the note was not necessary, as the Company believes the value of the collateral securing Wellstat Diagnostics’ obligations exceeds the carrying value of the asset and is sufficient to enable the Company to recover the current carrying value of $50.2 million. The Company continues to closely monitor the timing and expected recovery of amounts due, including litigation and other matters related to Wellstat Diagnostics Guarantors’ assets. There can be no assurance that an allowance on the carrying value of the notes receivable investment will not be necessary in a future period depending on future developments. Hyperion Agreement On January 27, 2012, the Company and Hyperion Catalysis International, Inc. (“Hyperion”) (which is also a Wellstat Diagnostics Guarantor) entered into an agreement whereby Hyperion sold to the Company the royalty streams due from SDK related to a certain patent license agreement between Hyperion and SDK dated December 31, 2008. The agreement assigned the patent license agreement royalty stream accruing from January 1, 2012 through December 31, 2013, to the Company in exchange for the lump sum payment to Hyperion of $2.3 million. In exchange for the lump sum payment, the Company were to receive two equal payments of $1.2 million on each of March 5, 2013 and 2014. The first payment of $1.2 million was paid on March 5, 2013, but Hyperion has not made the second payment that was due on March 5, 2014. The Company completed an impairment analysis as of September 30, 2016. Effective with this date and as a result of the event of default, the Company ceased to accrue interest revenue. As of December 31, 2016, the estimated fair value of the collateral was determined to be in excess of the carrying value. There can be no assurance that this will be true in the event of the Company’s foreclosure on the collateral, nor can there be any assurance of realizing value from such collateral. AxoGen Note Receivable and AxoGen Royalty Agreement In October 2012, the Company entered into the Revenue Interests Purchase Agreement (the “AxoGen Royalty Agreement”) with AxoGen, Inc. (“AxoGen”), providing for the payment of specified royalties to the Company on AxoGen’s net revenues (as defined in the AxoGen Royalty Agreement) generated by the sale, distribution or other use of AxoGen’s products. The AxoGen Royalty Agreement had an eight-year term and provided the Company with royalties of 9.95% based on AxoGen’s net revenues, subject to agreed-upon guaranteed quarterly minimum payments of approximately $1.3 million to $2.5 million, which began in the fourth quarter of 2014, and gave the Company the right to require AxoGen to repurchase the royalties under the AxoGen Royalty Agreement at the end of the fourth anniversary of the agreement. AxoGen was granted certain rights to call the contract in years five through eight. The total consideration the Company paid to AxoGen for the royalty rights was $20.8 million, including an interim funding of $1.8 million in August 2012. AxoGen was required to use a portion of the proceeds from the AxoGen Royalty Agreement to pay the outstanding balance under its existing credit facility. The royalty rights were secured by the cash and accounts receivable of AxoGen. On August 14, 2013, the Company purchased 1,166,666 shares of registered common stock of AxoGen (AXGN) at $3.00 per share, totaling $3.5 million. On December 22, 2014, the Company sold these shares at $3.03 per share, totaling approximately $3.5 million. On November 13, 2014, the Company agreed to terminate the AxoGen Royalty Agreement in consideration for a payment of $30.3 million in cash, which was the sum of the outstanding principal, interest and embedded derivative. At the same time, the Company acquired 643,382 shares of registered common stock of AxoGen for approximately $1.7 million at a public offering price of $2.72 per share. The shares were classified as available-for-sale securities and recorded as short-term investments on the Consolidated Balance Sheets. In the third and fourth quarters of 2015, the Company sold 200,000 and 149,650 shares, respectively, at a price range between $5.46 and $5.69 per share, resulting in a gain totaling approximately $1.9 million. In the first and second quarters of 2016, the Company sold 50,000 and 243,732 shares, respectively, at a price range between $5.44 and $6.10 per share, resulting in a gain totaling approximately $882,000. As of December 31, 2016, the Company no longer owns shares of AxoGen. Avinger Credit and Royalty Agreement Under the terms of the Avinger Credit and Royalty Agreement, the Company receives a low, single-digit royalty on Avinger’s net revenues until April 2018. Commencing in October 2015, after Avinger repaid $21.4 million pursuant to its note receivable prior to its maturity date, the royalty on Avinger’s net revenues reduced by 50%, subject to certain minimum payments from the prepayment date until April 2018. The Company has accounted for the royalty rights in accordance with the fair value option. For a further discussion of the Avinger Credit and Royalty Agreement, see Note 4. LENSAR Credit Agreement On October 1, 2013, the Company entered into a credit agreement with LENSAR, Inc. (“LENSAR”), pursuant to which the Company made available to LENSAR up to $60.0 million to be used by LENSAR in connection with the commercialization of its currently marketed LENSAR™ Laser System. Of the $60.0 million available to LENSAR, an initial $40.0 million, net of fees, was funded by the Company at the close of the transaction. The remaining $20.0 million, in the form of a second tranche is no longer available to LENSAR under the terms of the credit agreement. Outstanding borrowings under the loans bore interest at the rate of 15.5% per annum, payable quarterly in arrears. On May 12, 2015, the Company entered into a forbearance agreement with LENSAR, pursuant to which the Company agreed to refrain from exercising certain remedies available to it resulting from the failure of LENSAR to comply with a liquidity covenant and make interest payments due under the credit agreement. Under the forbearance agreement, the Company agreed to provide LENSAR with up to an aggregate of $8.5 million in weekly increments through the period ended September 30, 2015 plus employee retention amounts of approximately $0.5 million in the form of additional loans, subject to LENSAR meeting certain milestones related to LENSAR obtaining additional capital to fund the business or sell the business and repay outstanding amounts under the credit agreement. In exchange for the forbearance, LENSAR agreed to additional reporting covenants, the engagement of a chief restructuring officer and an increase on the interest rate to 18.5%, applicable to all outstanding amounts under the credit agreement. On September 30, 2015, the Company agreed to extend the forbearance agreement until October 9, 2015 and provide for up to an additional $0.8 million in funding while LENSAR negotiated a potential sale of its assets. On October 9, 2015, the forbearance agreement expired, but the Company agreed to fund LENSAR’s operations while LENSAR continued to negotiate a potential sale of its assets. On November 15, 2015, LENSAR, LLC (“LENSAR/Alphaeon”), a wholly owned subsidiary of Alphaeon Corporation (“Alphaeon”), and LENSAR entered into the Asset Purchase Agreement whereby LENSAR/Alphaeon agreed to acquire certain assets of LENSAR and assumed certain liabilities of LENSAR. The acquisition was consummated on December 15, 2015. In connection with the closing of the acquisition, LENSAR/Alphaeon entered into an amended and restated credit agreement with the Company, assuming $42.0 million in loans as part of the borrowings under the Company’s prior credit agreement with LENSAR. In addition, Alphaeon issued 1.7 million shares of its Class A common stock to the Company. The Company has estimated a fair value of $3.84 per share for the 1.7 million shares of Alphaeon Class A common stock received in connection with the transactions and recognized this investment as a cost-method investment of $6.6 million included in other long-term asset. The Alphaeon Class A common stock is subject to other-than-temporary impairment assessments in future periods. There is no other-than-temporary impairment charge incurred as of December 31, 2016. In December 2016, LENSAR, re-acquired the assets from LENSAR/Alphaeon and the Company entered into an amended and restated credit agreement with LENSAR whereby LENSAR assumed all obligations outstanding under the credit agreement with LENSAR/Alphaeon. Also in December, LENSAR filed for a voluntary petition under Chapter 11 of the U.S. Bankruptcy Code (“Chapter 11 case”) with the support of the Company. In January 2017, the Company agreed to provide debtor-in-possession financing of up to $2.8 million to LENSAR so that it can continue to operate its business during the remainder of the bankruptcy proceeding. LENSAR has filed a Chapter 11 plan of reorganization with the Company’s support under which, subject to bankruptcy court approval, it is expected that LENSAR will issue equity securities to the Company in exchange for a portion of the Company’s claims in the Chapter 11 case and will become an operating subsidiary of the Company. The Company completed an impairment analysis as of December 31, 2016. Effective with this date and as a result of the event of default, we determined the loan to be impaired and we ceased to accrue interest revenue. As of December 31, 2016, the estimated fair value of the collateral would be sufficient to recover the carrying value. There can be no assurance that this will be true, nor can there be any assurance of realizing value from such collateral. Direct Flow Medical Credit Agreement On November 5, 2013, the Company entered into a credit agreement with Direct Flow Medical, Inc. (“Direct Flow Medical”) under which the Company agreed to provide up to $50.0 million to Direct Flow Medical. Of the $50.0 million available to Direct Flow Medical, an initial $35.0 million (tranche one), net of fees, was funded by the Company at the close of the transaction. Pursuant to the original terms of the credit agreement the Company agreed to provide Direct Flow Medical with an additional $15.0 million tranche, net of fees, upon the attainment of a specified revenue milestone to be accomplished no later than December 31, 2014 (the tranche two milestone). Until the occurrence of the tranche two milestone, outstanding borrowings under tranche one bore interest at the rate of 15.5% per annum, payable quarterly in arrears. On November 10, 2014, the Company and Direct Flow Medical agreed to an amendment to the credit agreement to permit Direct Flow Medical to borrow the $15.0 million second tranche upon receipt by Direct Flow Medical of a specified minimum amount of proceeds from an equity offering prior to December 31, 2014. In exchange, the parties amended the credit agreement to provide for additional fees associated with certain liquidity events, such as a change of control or the consummation of an initial public offering, and granted the Company certain board of director observation rights. On November 19, 2014, upon Direct Flow Medical satisfying the amended tranche two milestone, the Company funded the $15.0 million second tranche to Direct Flow Medical, net of fees. Upon occurrence of the borrowing of this second tranche, the interest rate applicable to all loans under the credit agreement was decreased to 13.5% per annum, payable quarterly in arrears. Under the terms of the credit agreement, Direct Flow Medical’s obligation to repay loan principal commenced on the twelfth interest payment date, September 30, 2016. The principal amount outstanding at commencement of repayment is required to be repaid in equal installments until final maturity of the loans. The loans mature on November 5, 2018. Direct Flow Medical may elect to prepay the loans at any time, subject to a prepayment penalty that decreases over the life of the loans. The obligations under the credit agreement are secured by a pledge of substantially all of the assets of Direct Flow Medical and any of its subsidiaries. On December 21, 2015, Direct Flow Medical and the Company entered into a waiver to the credit agreement in anticipation of Direct Flow Medical being unable to comply with the liquidity covenant and make interest payments due under the credit agreement. On January 14, 2016, both parties agreed to provide Direct Flow Medical with an extension to waive the liquidity covenant and delay the timing of the interest payments through the period ending September 30, 2016 while Direct Flow Medical sought additional financing to operate its business. On January 28, 2016, the Company funded an additional $5.0 million to Direct Flow Medical in the form of a short-term secured promissory note. On February 26, 2016, the Company and Direct Flow Medical entered into the fourth amendment to the credit agreement that, among other things, (i) converted the $5.0 million short-term secured promissory note into a loan under the credit agreement with substantially the same interest and payment terms as the existing loans, (ii) added a conversion feature whereby the $5.0 million loan would convert into equity of Direct Flow Medical upon the occurrence of certain events and (iii) provided for a second $5.0 million convertible loan tranche commitment, to be funded at the option of the Company. The commitment for the second tranche was not funded and has since expired. In addition, (i) the Company agreed to waive the liquidity covenant and delay the timing of the unpaid interest payments until September 30, 2016 and (ii) Direct Flow Medical agreed to issue to the Company a specified amount of warrants to purchase shares of convertible preferred stock on the first day of each month for the duration of the waiver period at an exercise price of $0.01 per share. On July 15, 2016, the Company and Direct Flow Medical entered into the fifth amendment and limited waiver to the credit agreement. The Company funded an additional $1.5 million to Direct Flow Medical in the form of a note with substantially the same interest and payment terms as the existing loans and a conversion feature whereby the $1.5 million loan would convert into equity of Direct Flow Medical upon the occurrence of certain events. In addition, Direct Flow Medical agreed to issue to the Company warrants to purchase shares of convertible preferred stock at an exercise price of $0.01 per share. On September 12, 2016, the Company and Direct Flow Medical entered into the sixth amendment and limited waiver to the credit agreement under which the Company funded an additional $1.5 million to Direct Flow Medical in the form of a note with substantially the same interest and payment terms as the existing loans. In addition, Direct Flow Medical agreed to issue to the Company a specified amount of warrants to purchase shares of convertible preferred stock at an exercise price of $0.01 per share. On September 30, 2016, the Company and Direct Flow Medical entered into the tenth limited waiver to the credit agreement where the parties agreed, among other things, to (i) delay payment on all overdue interest payments until October 31, 2016, (ii) waive the initial principal repayment until October 31, 2016 and (iii) continue to waive the liquidity requirements until October 31, 2016. Further, Direct Flow Medical agreed to issue to the Company a specified amount of warrants to purchase shares of convertible preferred stock at an exercise price of $0.01 per share. On October 31, 2016 the Company agreed to extend the waivers described above until November 30, 2016 and on November 14, 2016, the Company advanced an additional $1.0 million loan while Direct Flow Medical continued to seek additional financing. On November 16, 2016, Direct Flow Medical advised the Company that its potential financing source had modified its proposal from an equity investment to a loan with a substantially smaller amount and under less favorable terms. Direct Flow Medical shut down its operations in December 2016 and in January 2017 made an assignment for the benefit of creditors. The Company then initiated foreclosure proceedings, which have since concluded, resulting in the Company obtaining ownership of most of the Direct Flow Medical assets through its wholly-owned subsidiary, DFM, LLC. In January 2017, the Company and DFM, LLC entered into an Intellectual Property Assignment Agreement with Hong Kong Haisco Pharmaceutical Co., Limited (“Haisco”), a Chinese pharmaceutical company, whereby Haisco acquired former Direct Flow Medical clinical, regulatory and commercial information and intellectual property rights exclusively in China for $7.0 million. The Company expects to further monetize the remaining assets of Direct Flow Medical that it obtained in the foreclosure and has ascribed a carrying value of $3.0 million at December 31, 2016. At December 31, 2016, the Company completed an impairment analysis and concluded that the situation qualified as a troubled debt restructuring. As of December 31, 2016, the Company recognized an impairment loss of $51.1 million. Paradigm Spine Credit Agreement On February 14, 2014, the Company entered into the Credit Agreement (the “Paradigm Spine Credit Agreement”) with Paradigm Spine, LLC (“Paradigm Spine”), under which it made available to Paradigm Spine up to $75.0 million to be used by Paradigm Spine to refinance its existing credit facility and expand its domestic commercial operations. Of the $75.0 million available to Paradigm Spine, an initial $50.0 million, net of fees, was funded by the Company at the close of the transaction. The second and third tranches of up to an additional $25.0 million in the aggregate, net of fees, are no longer available under the terms of the Paradigm Spine Credit Agreement. On October 27, 2015, the Company and Paradigm Spine entered into an amendment to the Paradigm Spine Credit Agreement to provide additional term loan commitments of up to $7.0 million payable in two tranches, of which the first tranche of $4.0 million was drawn on the closing date of the amendment, net of fees. Paradigm Spine chose not to draw down the second tranche of $3.0 million and such tranche is no longer available. Borrowings under the credit agreement bore interest at the rate of 13.0% per annum, payable quarterly in arrears. On August 26, 2016, the Company received $57.5 million in connection with the prepayment of the loans under the Paradigm Spine Credit Agreement, which included a repayment of the full principal amount outstanding of $54.7 million, plus accrued interest and a prepayment fee. kaléo Note Purchase Agreement On April 1, 2014, the Company entered into a note purchase agreement with Accel 300, LLC (“Accel 300”), a wholly-owned subsidiary of kaléo, Inc. (“kaléo”), pursuant to which the Company acquired $150.0 million of secured notes due 2029. The secured notes were issued pursuant to an indenture between Accel 300 and U.S. Bank, National Association, as trustee, and are secured by 20% of net sales of its first approved product, Auvi-Q^® (epinephrine auto-injection, USP) (known as Allerject^®in Canada) and 10% of net sales of kaléo’s second proprietary auto-injector based product, EVZIO (naloxone hydrochloride injection ) (the “kaléo Revenue Interests”), and a pledge of kaléo’s equity ownership in Accel 300. The secured notes bear interest at 13% per annum, paid quarterly in arrears on principal outstanding. The principal balance of the secured notes is repaid to the extent that the kaléo Revenue Interests exceed the quarterly interest payment, as limited by a quarterly payment cap. The final maturity of the secured notes is June 2029. kaléo may redeem the secured notes at any time, subject to a redemption premium. As of December 31, 2016, the Company determined that its royalty purchase interest in Accel 300 represented a variable interest in a variable interest entity. However, the Company does not have the power to direct the activities of Accel 300 that most significantly impact Accel 300’s economic performance and is not the primary beneficiary of Accel 300; therefore, Accel 300 is not subject to consolidation by the Company. On October 28, 2015, Sanofi US initiated a voluntary nationwide recall of all Auvi-Q units effectively immediately because in rare cases the syringe would not deliver the proper amount of epinephrine, the drug used to treat severe allergic reactions. Sanofi was the exclusive licensee of kaléo for the manufacturing and commercialization of Auvi-Q. In March 2016, Sanofi and kaléo terminated their license and development agreement and all U.S. and Canadian commercial and manufacturing rights to Auvi-Q^® and Allerject^®, and manufacturing equipment, were returned to kaléo. As part of the financing transaction, kaléo was required to establish an interest reserve account of $20.0 million from the $150.0 million provided by the Company. The purpose of this interest reserve account is to cover any possible shortfalls in interest payments owed to the Company. While the interest reserve account was depleted in the second quarter of 2016, kaléo continues to make interest payments due to the Company under the note purchase agreement and the Company expects that kaléo will fund future interest payments with existing cash until Auvi-Q is returned to the market. kaléo reintroduced Auvi-Q to the U.S. market on February 14, 2017. At December 31, 2016, it has been determined that there is no impairment. CareView Credit Agreement On June 26, 2015, the Company entered into a credit agreement with CareView Communications Inc. (“Careview”), under which the Company made available to CareView up to $40.0 million in two tranches of $20.0 million each. Under the terms of the credit agreement, the first tranche of $20.0 million, net of fees, was funded by the Company upon CareView’s attainment of a specified milestone relating to the placement of CareView Systems^®, on October 7, 2015. The second $20.0 million tranche would be funded upon CareView’s attainment of specified milestones relating to the placement of CareView Systems and consolidated earnings before interest, taxes, depreciation and amortization, to be accomplished no later than June 30, 2017. Outstanding borrowings under the credit agreement will bear interest at the rate of 13.5% per annum and are payable quarterly in arrears. As part of the transaction, the Company received a warrant to purchase approximately 4.4 million shares of common stock of CareView at an exercise price of $0.45 per share. The Company has accounted for the warrant as derivative asset with an offsetting credit as debt discount. At each reporting period the warrant is marked to market for changes in fair value. On October 7, 2015, the Company and CareView entered into an amendment of the credit agreement to modify certain definitions related to the first and second tranche milestones. In connection with the amendment of the credit agreement, the Company and CareView also agreed to amend the warrant to purchase common stock agreement by reducing the warrant’s exercise price from $0.45 to $0.40 per share. At December 31, 2016, the Company determined an estimated fair value of the warrant of $0.1 million. For carrying value and fair value information related to the Company’s Fair Value Measurements, see Note 4.

Notes and Other Long-Term Receivables

Notes and other long-term receivables included the following significant agreements:

Wellstat Diagnostics Note Receivable and Credit Agreement

In March 2012, the Company executed a $7.5 million two-year senior secured note receivable with the holders of the equity interests in Wellstat Diagnostics, LLC a/k/a Defined Diagnostics, LLC (“Wellstat Diagnostics”). In addition to bearing interest at 10% per annum, the note receivable gave the Company certain rights to negotiate for certain future financing transactions. In August 2012, the Company and Wellstat Diagnostics amended the note receivable, providing a senior secured note receivable of $10.0 million, bearing interest at 12% per annum, to replace the original $7.5 million note receivable. This $10.0 million note receivable was repaid on November 2, 2012, using the proceeds of the $40.0 million credit agreement entered into with the Company on the same date, as described below.

On November 2, 2012, the Company and Wellstat Diagnostics entered into a $40.0 million credit agreement pursuant to which the Company was to accrue quarterly interest payments at the rate of 5% per annum (payable in cash or in kind). In addition, the Company was to receive quarterly royalty payments based on a low double-digit royalty rate of Wellstat Diagnostics’ net revenues, generated by the sale, distribution or other use of Wellstat Diagnostics’ products, if any, commencing upon the commercialization of its products.

In January 2013, the Company was informed that, as of December 31, 2012, Wellstat Diagnostics had used funds contrary to the terms of the credit agreement and breached Sections 2.1.2 and 7 of the credit agreement. The Company sent Wellstat Diagnostics a notice of default on January 22, 2013, and accelerated the amounts owed under the credit agreement. In connection with the notice of default, the Company exercised one of its available remedies and transferred approximately $8.1 million of available cash from a bank account of Wellstat Diagnostics to the Company and applied the funds to amounts due under the credit agreement. On February 28, 2013, the parties entered into a forbearance agreement whereby the Company agreed to refrain from exercising additional remedies for 120 days while Wellstat Diagnostics raised funds to capitalize the business and the parties attempted to negotiate a revised credit agreement. The Company agreed to provide up to $7.9 million to Wellstat Diagnostics to fund the business for the 120-day forbearance period under the terms of the forbearance agreement. Following the conclusion of the forbearance period that ended on June 28, 2013, the Company agreed to forbear its exercise of remedies for additional periods of time to allow the owners and affiliates of Wellstat Diagnostics to complete a pending financing transaction. During such forbearance period, the Company provided approximately $1.3 million to Wellstat Diagnostics to fund ongoing operations of the business. During the year ended December 31, 2013, approximately $8.7 million was advanced pursuant to the forbearance agreement.

On August 15, 2013, the owners and affiliates of Wellstat Diagnostics completed a financing transaction to fulfill Wellstat Diagnostics’ obligations under the forbearance agreement. On August 15, 2013, the Company entered into an amended and restated credit agreement with Wellstat Diagnostics. The Company determined that the new agreement should be accounted for as a modification of the existing agreement.

Except as otherwise described herein, the material terms of the amended and restated credit agreement are substantially the same as those of the original credit agreement, including quarterly interest payments at the rate of 5% per annum (payable in cash or in kind). In addition, the Company was to continue to receive quarterly royalty payments based on a low double-digit royalty rate of Wellstat Diagnostics’ net revenues. However, pursuant to the amended and restated credit agreement: (i) the principal amount was reset to approximately $44.1 million, which was comprised of approximately $33.7 million original loan principal and interest, $1.3 million term loan principal and interest and $9.1 million forbearance principal and interest; (ii) the specified internal rates of return increased; (iii) the default interest rate was increased; (iv) Wellstat Diagnostics’ obligation to provide certain financial information increased in frequency to monthly; (v) internal financial controls were strengthened by requiring Wellstat Diagnostics to maintain an independent, third-party financial professional with control over fund disbursements; (vi) the Company waived the existing events of default; and (vii) the owners and affiliates of Wellstat Diagnostics were required to contribute additional capital to Wellstat Diagnostics upon the sale of an affiliate entity. The amended and restated credit agreement had an ultimate maturity date of December 31, 2021 (but has subsequently been accelerated as described below).

When the principal amount was reset, a $2.5 million reduction of the carrying value was recorded as a financing cost as a component of “Interest and other income, net”. The new carrying value is lower as a function of the variable nature of the internal rate of return to be realized by the Company based on when the note was to be repaid. The internal rate of return calculation, although increased, was reset when the credit agreement was amended and restated.

In June 2014, the Company received information from Wellstat Diagnostics showing that it was generally unable to pay its debts as they became due, constituting an event of default under the amended and restated credit agreement. Wellstat Diagnostics entered into a transaction involving another lender, pursuant to which Wellstat Diagnostics obtained additional short-term funding for its operations. At the same time, the Company entered into the first amendment to amended and restated credit agreement with Wellstat Diagnostics. The material terms of the amendment included the following: (1) Wellstat Diagnostics acknowledged that an event of default had occurred; (2) the Company agreed to forbear from immediately enforcing its rights for up to 60 days, so long as the other lender provided agreed levels of interim funding to Wellstat Diagnostics; and (3) the Company obtained specified additional information rights with regard to Wellstat Diagnostics’ financial matters and investment banking activities.

On August 5, 2014, the Company received notice that the short-term funding being provided pursuant to the agreement with the other lender entered into during June 2014, was being terminated. Wellstat Diagnostics remained in default because it was still unable to pay its debts as they became due. Accordingly, the Company delivered a notice of default (the “Wellstat Diagnostics Borrower Notice”). The Wellstat Diagnostics Borrower Notice accelerated all obligations under the amended and restated credit agreement and demanded immediate payment in full in an amount equal to approximately $53.9 million, (which amount, in accordance with the terms of the amended and restated credit agreement, included an amount that, together with interest and royalty payments already made to the Company, would generate a specified internal rate of return to the Company), plus accruing fees, costs and interest, and demanded that Wellstat Diagnostics protect and preserve all collateral securing its obligations.

On August 7, 2014, the Company delivered a notice (the “Wellstat Diagnostics Guarantor Notice”) to each of Samuel J. Wohlstadter, Nadine H. Wohlstadter, Duck Farm, Inc., Hebron Valley Farms, Inc., HVF, Inc., Hyperion Catalysis EU Limited, Hyperion, NHW, LLC, Wellstat AVT Investment, LLC, Wellstat Biocatalysis, LLC, Wellstat Biologics Corporation, Wellstat Diagnostics, Wellstat Immunotherapeutics, LLC, Wellstat Management Company, LLC, Wellstat Opthalmics Corporation, Wellstat Therapeutics Corporation, Wellstat Therapeutics EU Limited, Wellstat Vaccines, LLC and SJW Properties, Inc., the guarantors of Wellstat Diagnostics’ obligations to the Company (collectively, the “Wellstat Diagnostics Guarantors”) under the credit agreement. The Wellstat Diagnostics Guarantor Notice included a demand that the guarantors remit payment to the Company in the amount of the outstanding obligations. The guarantors include certain affiliates and related companies of Wellstat Diagnostics, including Wellstat Therapeutics and Wellstat Diagnostics’ stockholders.

On August 21, 2014, the Company entered into the second amendment to the amended and restated credit agreement with Wellstat Diagnostics, which amendment provided for the Company to make a discretionary advance to Wellstat Diagnostics.

On September 24, 2014, the Company filed an ex-parte petition for appointment of receiver with the Circuit Court of Montgomery County, Maryland (“the Wellstat Diagnostics Petition”), which was granted on the same day. The order granting the Wellstat Diagnostics Petition authorizes the receiver to take immediate possession of the physical assets of Wellstat Diagnostics, with the purpose of holding, protecting, insuring, managing and preserving the business of Wellstat Diagnostics and the value of the Company’s collateral. Wellstat Diagnostics has remained in operation during the period of the receivership with incremental additional funding from the Company.

On November 4, 2014, the Company entered into the third amendment to the amended and restated credit agreement with Wellstat Diagnostics. The amendment provides that additional funding, if any, to be made by the Company is conditioned upon the agreement by Wellstat Diagnostics to make certain operational changes within Wellstat Diagnostics, which the Company believes will allow the receiver to more efficiently optimize the value of the collateral.

During the second quarter of 2015, the receiver initiated a process for a public sale of the assets of Wellstat Diagnostics and retained the investment banking firm of Duff & Phelps to organize and manage the sale process. The receiver filed a “Motion for Approval of Sale Procedures” with the Circuit Court for Montgomery County, Maryland, which is the court having jurisdiction over the receivership and a hearing was held on July 22, 2015, at which time arguments were heard from interested parties regarding the sale procedures. No significant substantive disagreements between the parties regarding the sale procedures remained after the hearing and a decision approving the receiver’s sale procedures was made in the third quarter of 2015. The Company submitted a credit bid for the Wellstat Diagnostic assets at a value corresponding to some portion of the outstanding amount due under the amended and restated credit agreement which is subject to court approval. A hearing was scheduled in the Maryland Circuit Court for April 13, 2016 to hear the Receiver’s motion to approve the credit bid sale to the Company. However, on April 12, 2016, Wellstat Diagnostics changed its name to Defined Diagnostics, LLC and filed for bankruptcy under Chapter 11 in the United States Bankruptcy Court in the Southern District of New York. The filing of the bankruptcy case stays the proceedings in the Maryland Circuit Court pursuant to the automatic stay provisions of the Bankruptcy Code. On June 15, 2016, in response to a Motion to Dismiss filed by the Company alleging, among other things, that the New York Bankruptcy Court is not a proper venue for Defined Diagnostics to file for bankruptcy under Chapter 11, the New York Bankruptcy Court dismissed and transferred the action to the United States Bankruptcy Court in Delaware. On August 2, 2016 the Delaware Bankruptcy Court announced its decision to grant the Company’s motion to dismiss the chapter 11 petition with prejudice as a bad faith filing, which resulted in a lifting of the stay on the receivership sale in the Maryland Circuit Court. A hearing has been scheduled for December 22, 2016, in front of the Maryland Circuit Court related to the Company’s credit bid for Wellstat Diagnostics’ assets.

On September 4, 2015, the Company filed in the Supreme Court of New York a motion for summary judgment in lieu of complaint which requested that the court enter judgment against certain of the Wellstat Diagnostics Guarantors for the total amount due on the Wellstat Diagnostics debt, plus all costs and expenses including lawyers’ fees incurred by the Company in enforcement of the related guarantees. On September 23, 2015, the Company filed in the same court an ex parte application for a temporary restraining order and order of attachment of the Wellstat Diagnostics Guarantor defendants’ assets. At a hearing on September 24, 2015, regarding the Company’s request for a temporary restraining order, the court ordered that the Company’s request for attachment and for summary judgment would be heard at a hearing on November 5, 2015. Although the court denied the Company’s request for a temporary restraining order at the hearing on September 24, 2015, it ordered that assets of the Wellstat Diagnostics Guarantor defendants should be held in status quo ante and only used in the normal course of business pending the outcome of the matters under consideration at the hearing.

On July 29, 2016, the Supreme Court of New York issued its Memorandum of Decision granting the Company’s motion for summary judgment and denying the Wellstat Diagnostics Guarantors’ cross-motion for summary judgment. The Supreme Court of New York held that the Wellstat Diagnostics Guarantor defendants are liable for all “Obligations” owed by Wellstat Diagnostics to the Company. It did not set a specific dollar amount due, but ordered that a judicial hearing officer or special referee be designated to determine the amount of the Obligations owing, and awarded the Company its attorneys’ fees and costs in an amount to be determined.

On July 29, 2016, the Wellstat Diagnostics Guarantor defendants filed a notice of appeal from the Memorandum of Decision to the Appellate Division of the Supreme Court of New York. On February 14, 2017, the Appellate Division of the Supreme Court of New York reversed on procedural grounds the portion of the Memorandum of Decision granting the Company summary judgment in lieu of complaint, but affirmed the portion of the Memorandum of Decision denying the Wellstat Diagnostics Guarantor defendants’ motion for summary judgment in which they sought a determination that the guarantees had been released. As a result, the litigation has been remanded to the Supreme Court of New York to proceed on the Company’s claims as a plenary action.

On September 1, 2016, the Company filed a motion for relief pursuant to New York law (i) restraining the Wellstat Diagnostics Guarantor defendants from making any sale, assignment, transfer or interference in any of their property, or from paying over or otherwise disposing of any debt and (ii) authorizing the Company to examine the assets of each of the Wellstat Diagnostics Guarantor defendants. On October 5, 2016, the Wellstat Diagnostics Guarantor defendants filed a motion for leave of the court to assert counterclaims against the Company, and certain officers and consultants of the Company, for (i) breach of fiduciary duty, (ii) intentional interference with prospective economic advantage, (iii) breach of the duty of good faith and fair dealing and negligent misrepresentation. A hearing date on the motion to assert counterclaims has yet to be set.

On October 14, 2016, the Company sent a notice of default and reference to foreclosure proceedings to certain of the Wellstat Diagnostics Guarantors which are not defendants in the New York action, but which are owners of real estate assets over which a deed of trust in favor of the Company securing the guarantee of the loan to Wellstat Diagnostics had been executed.

On October 22, 2015, certain of the Wellstat Diagnostics Guarantors filed a complaint against the Company in the Supreme Court of New York seeking a declaratory judgment that certain contractual arrangements entered into between the parties subsequent to Wellstat Diagnostics’ default, and which relate to a split of proceeds in the event that the Wellstat Diagnostics Guarantors voluntarily monetize any assets that are the Company’s collateral, is of no force or effect.

Through the period ended December 31, 2016, the Company has advanced to Wellstat Diagnostics $18.4 million to fund the ongoing operations of the business and other associated costs. This funding has been expensed as incurred.

Effective April 1, 2014, and as a result of the event of default, the Company determined the loan to be impaired and it ceased to accrue interest revenue. At that time and as of December 31, 2016, it has been determined that an allowance on the carrying value of the note was not necessary, as the Company believes the value of the collateral securing Wellstat Diagnostics’ obligations exceeds the carrying value of the asset and is sufficient to enable the Company to recover the current carrying value of $50.2 million. The Company continues to closely monitor the timing and expected recovery of amounts due, including litigation and other matters related to Wellstat Diagnostics Guarantors’ assets. There can be no assurance that an allowance on the carrying value of the notes receivable investment will not be necessary in a future period depending on future developments.

Hyperion Agreement

On January 27, 2012, the Company and Hyperion Catalysis International, Inc. (“Hyperion”) (which is also a Wellstat Diagnostics Guarantor) entered into an agreement whereby Hyperion sold to the Company the royalty streams due from SDK related to a certain patent license agreement between Hyperion and SDK dated December 31, 2008. The agreement assigned the patent license agreement royalty stream accruing from January 1, 2012 through December 31, 2013, to the Company in exchange for the lump sum payment to Hyperion of $2.3 million. In exchange for the lump sum payment, the Company were to receive two equal payments of $1.2 million on each of March 5, 2013 and 2014. The first payment of $1.2 million was paid on March 5, 2013, but Hyperion has not made the second payment that was due on March 5, 2014. The Company completed an impairment analysis as of September 30, 2016. Effective with this date and as a result of the event of default, the Company ceased to accrue interest revenue. As of December 31, 2016, the estimated fair value of the collateral was determined to be in excess of the carrying value. There can be no assurance that this will be true in the event of the Company’s foreclosure on the collateral, nor can there be any assurance of realizing value from such collateral.

AxoGen Note Receivable and AxoGen Royalty Agreement

In October 2012, the Company entered into the Revenue Interests Purchase Agreement (the “AxoGen Royalty Agreement”) with AxoGen, Inc. (“AxoGen”), providing for the payment of specified royalties to the Company on AxoGen’s net revenues (as defined in the AxoGen Royalty Agreement) generated by the sale, distribution or other use of AxoGen’s products. The AxoGen Royalty Agreement had an eight-year term and provided the Company with royalties of 9.95% based on AxoGen’s net revenues, subject to agreed-upon guaranteed quarterly minimum payments of approximately $1.3 million to $2.5 million, which began in the fourth quarter of 2014, and gave the Company the right to require AxoGen to repurchase the royalties under the AxoGen Royalty Agreement at the end of the fourth anniversary of the agreement. AxoGen was granted certain rights to call the contract in years five through eight. The total consideration the Company paid to AxoGen for the royalty rights was $20.8 million, including an interim funding of $1.8 million in August 2012. AxoGen was required to use a portion of the proceeds from the AxoGen Royalty Agreement to pay the outstanding balance under its existing credit facility. The royalty rights were secured by the cash and accounts receivable of AxoGen.

On August 14, 2013, the Company purchased 1,166,666 shares of registered common stock of AxoGen (AXGN) at $3.00 per share, totaling $3.5 million. On December 22, 2014, the Company sold these shares at $3.03 per share, totaling approximately $3.5 million.

On November 13, 2014, the Company agreed to terminate the AxoGen Royalty Agreement in consideration for a payment of $30.3 million in cash, which was the sum of the outstanding principal, interest and embedded derivative. At the same time, the Company acquired 643,382 shares of registered common stock of AxoGen for approximately $1.7 million at a public offering price of $2.72 per share. The shares were classified as available-for-sale securities and recorded as short-term investments on the Consolidated Balance Sheets. In the third and fourth quarters of 2015, the Company sold 200,000 and 149,650 shares, respectively, at a price range between $5.46 and $5.69 per share, resulting in a gain totaling approximately $1.9 million. In the first and second quarters of 2016, the Company sold 50,000 and 243,732 shares, respectively, at a price range between $5.44 and $6.10 per share, resulting in a gain totaling approximately $882,000.

As of December 31, 2016, the Company no longer owns shares of AxoGen.

Avinger Credit and Royalty Agreement

Under the terms of the Avinger Credit and Royalty Agreement, the Company receives a low, single-digit royalty on Avinger’s net revenues until April 2018. Commencing in October 2015, after Avinger repaid $21.4 million pursuant to its note receivable prior to its maturity date, the royalty on Avinger’s net revenues reduced by 50%, subject to certain minimum payments from the prepayment date until April 2018. The Company has accounted for the royalty rights in accordance with the fair value option. For a further discussion of the Avinger Credit and Royalty Agreement, see Note 4.

LENSAR Credit Agreement

On October 1, 2013, the Company entered into a credit agreement with LENSAR, Inc. (“LENSAR”), pursuant to which the Company made available to LENSAR up to $60.0 million to be used by LENSAR in connection with the commercialization of its currently marketed LENSAR™ Laser System. Of the $60.0 million available to LENSAR, an initial $40.0 million, net of fees, was funded by the Company at the close of the transaction. The remaining $20.0 million, in the form of a second tranche is no longer available to LENSAR under the terms of the credit agreement. Outstanding borrowings under the loans bore interest at the rate of 15.5% per annum, payable quarterly in arrears.

On May 12, 2015, the Company entered into a forbearance agreement with LENSAR, pursuant to which the Company agreed to refrain from exercising certain remedies available to it resulting from the failure of LENSAR to comply with a liquidity covenant and make interest payments due under the credit agreement. Under the forbearance agreement, the Company agreed to provide LENSAR with up to an aggregate of $8.5 million in weekly increments through the period ended September 30, 2015 plus employee retention amounts of approximately $0.5 million in the form of additional loans, subject to LENSAR meeting certain milestones related to LENSAR obtaining additional capital to fund the business or sell the business and repay outstanding amounts under the credit agreement. In exchange for the forbearance, LENSAR agreed to additional reporting covenants, the engagement of a chief restructuring officer and an increase on the interest rate to 18.5%, applicable to all outstanding amounts under the credit agreement.

On September 30, 2015, the Company agreed to extend the forbearance agreement until October 9, 2015 and provide for up to an additional $0.8 million in funding while LENSAR negotiated a potential sale of its assets. On October 9, 2015, the forbearance agreement expired, but the Company agreed to fund LENSAR’s operations while LENSAR continued to negotiate a potential sale of its assets.

On November 15, 2015, LENSAR, LLC (“LENSAR/Alphaeon”), a wholly owned subsidiary of Alphaeon Corporation (“Alphaeon”), and LENSAR entered into the Asset Purchase Agreement whereby LENSAR/Alphaeon agreed to acquire certain assets of LENSAR and assumed certain liabilities of LENSAR. The acquisition was consummated on December 15, 2015.

In connection with the closing of the acquisition, LENSAR/Alphaeon entered into an amended and restated credit agreement with the Company, assuming $42.0 million in loans as part of the borrowings under the Company’s prior credit agreement with LENSAR. In addition, Alphaeon issued 1.7 million shares of its Class A common stock to the Company.

The Company has estimated a fair value of $3.84 per share for the 1.7 million shares of Alphaeon Class A common stock received in connection with the transactions and recognized this investment as a cost-method investment of $6.6 million included in other long-term asset. The Alphaeon Class A common stock is subject to other-than-temporary impairment assessments in future periods. There is no other-than-temporary impairment charge incurred as of December 31, 2016.

In December 2016, LENSAR, re-acquired the assets from LENSAR/Alphaeon and the Company entered into an amended and restated credit agreement with LENSAR whereby LENSAR assumed all obligations outstanding under the credit agreement with LENSAR/Alphaeon. Also in December, LENSAR filed for a voluntary petition under Chapter 11 of the U.S. Bankruptcy Code (“Chapter 11 case”) with the support of the Company. In January 2017, the Company agreed to provide debtor-in-possession financing of up to $2.8 million to LENSAR so that it can continue to operate its business during the remainder of the bankruptcy proceeding. LENSAR has filed a Chapter 11 plan of reorganization with the Company’s support under which, subject to bankruptcy court approval, it is expected that LENSAR will issue equity securities to the Company in exchange for a portion of the Company’s claims in the Chapter 11 case and will become an operating subsidiary of the Company.

The Company completed an impairment analysis as of December 31, 2016. Effective with this date and as a result of the event of

default, we determined the loan to be impaired and we ceased to accrue interest revenue. As of December 31, 2016, the estimated

fair value of the collateral would be sufficient to recover the carrying value. There can be no assurance that this will be

true, nor can there be any assurance of realizing value from such collateral.

Direct Flow Medical Credit Agreement

On November 5, 2013, the Company entered into a credit agreement with Direct Flow Medical, Inc. (“Direct Flow Medical”) under which the Company agreed to provide up to $50.0 million to Direct Flow Medical. Of the $50.0 million available to Direct Flow Medical, an initial $35.0 million (tranche one), net of fees, was funded by the Company at the close of the transaction. Pursuant to the original terms of the credit agreement the Company agreed to provide Direct Flow Medical with an additional $15.0 million tranche, net of fees, upon the attainment of a specified revenue milestone to be accomplished no later than December 31, 2014 (the tranche two milestone). Until the occurrence of the tranche two milestone, outstanding borrowings under tranche one bore interest at the rate of 15.5% per annum, payable quarterly in arrears.

On November 10, 2014, the Company and Direct Flow Medical agreed to an amendment to the credit agreement to permit Direct Flow Medical to borrow the $15.0 million second tranche upon receipt by Direct Flow Medical of a specified minimum amount of proceeds from an equity offering prior to December 31, 2014. In exchange, the parties amended the credit agreement to provide for additional fees associated with certain liquidity events, such as a change of control or the consummation of an initial public offering, and granted the Company certain board of director observation rights. On November 19, 2014, upon Direct Flow Medical satisfying the amended tranche two milestone, the Company funded the $15.0 million second tranche to Direct Flow Medical, net of fees. Upon occurrence of the borrowing of this second tranche, the interest rate applicable to all loans under the credit agreement was decreased to 13.5% per annum, payable quarterly in arrears.

Under the terms of the credit agreement, Direct Flow Medical’s obligation to repay loan principal commenced on the twelfth interest payment date, September 30, 2016. The principal amount outstanding at commencement of repayment is required to be repaid in equal installments until final maturity of the loans. The loans mature on November 5, 2018. Direct Flow Medical may elect to prepay the loans at any time, subject to a prepayment penalty that decreases over the life of the loans. The obligations under the credit agreement are secured by a pledge of substantially all of the assets of Direct Flow Medical and any of its subsidiaries.

On December 21, 2015, Direct Flow Medical and the Company entered into a waiver to the credit agreement in anticipation of Direct Flow Medical being unable to comply with the liquidity covenant and make interest payments due under the credit agreement.

On January 14, 2016, both parties agreed to provide Direct Flow Medical with an extension to waive the liquidity covenant and delay the timing of the interest payments through the period ending September 30, 2016 while Direct Flow Medical sought additional financing to operate its business.

On January 28, 2016, the Company funded an additional $5.0 million to Direct Flow Medical in the form of a short-term secured promissory note.

On February 26, 2016, the Company and Direct Flow Medical entered into the fourth amendment to the credit agreement that, among other things, (i) converted the $5.0 million short-term secured promissory note into a loan under the credit agreement with substantially the same interest and payment terms as the existing loans, (ii) added a conversion feature whereby the $5.0 million loan would convert into equity of Direct Flow Medical upon the occurrence of certain events and (iii) provided for a second $5.0 million convertible loan tranche commitment, to be funded at the option of the Company. The commitment for the second tranche was not funded and has since expired. In addition, (i) the Company agreed to waive the liquidity covenant and delay the timing of the unpaid interest payments until September 30, 2016 and (ii) Direct Flow Medical agreed to issue to the Company a specified amount of warrants to purchase shares of convertible preferred stock on the first day of each month for the duration of the waiver period at an exercise price of $0.01 per share.

On July 15, 2016, the Company and Direct Flow Medical entered into the fifth amendment and limited waiver to the credit agreement. The Company funded an additional $1.5 million to Direct Flow Medical in the form of a note with substantially the same interest and payment terms as the existing loans and a conversion feature whereby the $1.5 million loan would convert into equity of Direct Flow Medical upon the occurrence of certain events. In addition, Direct Flow Medical agreed to issue to the Company warrants to purchase shares of convertible preferred stock at an exercise price of $0.01 per share.

On September 12, 2016, the Company and Direct Flow Medical entered into the sixth amendment and limited waiver to the credit agreement under which the Company funded an additional $1.5 million to Direct Flow Medical in the form of a note with substantially the same interest and payment terms as the existing loans. In addition, Direct Flow Medical agreed to issue to the Company a specified amount of warrants to purchase shares of convertible preferred stock at an exercise price of $0.01 per share.

On September 30, 2016, the Company and Direct Flow Medical entered into the tenth limited waiver to the credit agreement where the parties agreed, among other things, to (i) delay payment on all overdue interest payments until October 31, 2016, (ii) waive the initial principal repayment until October 31, 2016 and (iii) continue to waive the liquidity requirements until October 31, 2016. Further, Direct Flow Medical agreed to issue to the Company a specified amount of warrants to purchase shares of convertible preferred stock at an exercise price of $0.01 per share.

On October 31, 2016 the Company agreed to extend the waivers described above until November 30, 2016 and on November 14, 2016, the Company advanced an additional $1.0 million loan while Direct Flow Medical continued to seek additional financing.

On November 16, 2016, Direct Flow Medical advised the Company that its potential financing source had modified its proposal from an equity investment to a loan with a substantially smaller amount and under less favorable terms. Direct Flow Medical shut down its operations in December 2016 and in January 2017 made an assignment for the benefit of creditors. The Company then initiated foreclosure proceedings, which have since concluded, resulting in the Company obtaining ownership of most of the Direct Flow Medical assets through its wholly-owned subsidiary, DFM, LLC.

In January 2017, the Company and DFM, LLC entered into an Intellectual Property Assignment Agreement with Hong Kong Haisco Pharmaceutical Co., Limited (“Haisco”), a Chinese pharmaceutical company, whereby Haisco acquired former Direct Flow Medical clinical, regulatory and commercial information and intellectual property rights exclusively in China for $7.0 million. The Company expects to further monetize the remaining assets of Direct Flow Medical that it obtained in the foreclosure and has ascribed a carrying value of $3.0 million at December 31, 2016.

At December 31, 2016, the Company completed an impairment analysis and concluded that the situation qualified as a troubled debt restructuring. As of December 31, 2016, the Company recognized an impairment loss of $51.1 million.

Paradigm Spine Credit Agreement

On February 14, 2014, the Company entered into the Credit Agreement (the “Paradigm Spine Credit Agreement”) with Paradigm Spine, LLC (“Paradigm Spine”), under which it made available to Paradigm Spine up to $75.0 million to be used by Paradigm Spine to refinance its existing credit facility and expand its domestic commercial operations. Of the $75.0 million available to Paradigm Spine, an initial $50.0 million, net of fees, was funded by the Company at the close of the transaction. The second and third tranches of up to an additional $25.0 million in the aggregate, net of fees, are no longer available under the terms of the Paradigm Spine Credit Agreement.

On October 27, 2015, the Company and Paradigm Spine entered into an amendment to the Paradigm Spine Credit Agreement to provide additional term loan commitments of up to $7.0 million payable in two tranches, of which the first tranche of $4.0 million was drawn on the closing date of the amendment, net of fees. Paradigm Spine chose not to draw down the second tranche of $3.0 million and such tranche is no longer available. Borrowings under the credit agreement bore interest at the rate of 13.0% per annum, payable quarterly in arrears.

On August 26, 2016, the Company received $57.5 million in connection with the prepayment of the loans under the Paradigm Spine Credit Agreement, which included a repayment of the full principal amount outstanding of $54.7 million, plus accrued interest and a prepayment fee.

kaléo Note Purchase Agreement

On April 1, 2014, the Company entered into a note purchase agreement with Accel 300, LLC (“Accel 300”), a wholly-owned subsidiary of kaléo, Inc. (“kaléo”), pursuant to which the Company acquired $150.0 million of secured notes due 2029. The secured notes were issued pursuant to an indenture between Accel 300 and U.S. Bank, National Association, as trustee, and are secured by 20% of net sales of its first approved product, Auvi-Q^® (epinephrine auto-injection, USP) (known as Allerject^®in Canada) and 10% of net sales of kaléo’s second proprietary auto-injector based product, EVZIO (naloxone hydrochloride injection ) (the “kaléo Revenue Interests”), and a pledge of kaléo’s equity ownership in Accel 300.

The secured notes bear interest at 13% per annum, paid quarterly in arrears on principal outstanding. The principal balance of the secured notes is repaid to the extent that the kaléo Revenue Interests exceed the quarterly interest payment, as limited by a quarterly payment cap. The final maturity of the secured notes is June 2029. kaléo may redeem the secured notes at any time, subject to a redemption premium.

As of December 31, 2016, the Company determined that its royalty purchase interest in Accel 300 represented a variable interest in a variable interest entity. However, the Company does not have the power to direct the activities of Accel 300 that most significantly impact Accel 300’s economic performance and is not the primary beneficiary of Accel 300; therefore, Accel 300 is not subject to consolidation by the Company.

On October 28, 2015, Sanofi US initiated a voluntary nationwide recall of all Auvi-Q units effectively immediately because in rare cases the syringe would not deliver the proper amount of epinephrine, the drug used to treat severe allergic reactions. Sanofi was the exclusive licensee of kaléo for the manufacturing and commercialization of Auvi-Q.

In March 2016, Sanofi and kaléo terminated their license and development agreement and all U.S. and Canadian commercial and manufacturing rights to Auvi-Q^® and Allerject^®, and manufacturing equipment, were returned to kaléo. As part of the financing transaction, kaléo was required to establish an interest reserve account of $20.0 million from the $150.0 million provided by the Company. The purpose of this interest reserve account is to cover any possible shortfalls in interest payments owed to the Company. While the interest reserve account was depleted in the second quarter of 2016, kaléo continues to make interest payments due to the Company under the note purchase agreement and the Company expects that kaléo will fund future interest payments with existing cash until Auvi-Q is returned to the market. kaléo reintroduced Auvi-Q to the U.S. market on February 14, 2017.

At December 31, 2016, it has been determined that there is no impairment.

CareView Credit Agreement

On June 26, 2015, the Company entered into a credit agreement with CareView Communications Inc. (“Careview”), under which the Company made available to CareView up to $40.0 million in two tranches of $20.0 million each. Under the terms of the credit agreement, the first tranche of $20.0 million, net of fees, was funded by the Company upon CareView’s attainment of a specified milestone relating to the placement of CareView Systems^®, on October 7, 2015. The second $20.0 million tranche would be funded upon CareView’s attainment of specified milestones relating to the placement of CareView Systems and consolidated earnings before interest, taxes, depreciation and amortization, to be accomplished no later than June 30, 2017. Outstanding borrowings under the credit agreement will bear interest at the rate of 13.5% per annum and are payable quarterly in arrears.

As part of the transaction, the Company received a warrant to purchase approximately 4.4 million shares of common stock of CareView at an exercise price of $0.45 per share. The Company has accounted for the warrant as derivative asset with an offsetting credit as debt discount. At each reporting period the warrant is marked to market for changes in fair value.

On October 7, 2015, the Company and CareView entered into an amendment of the credit agreement to modify certain definitions related to the first and second tranche milestones.

In connection with the amendment of the credit agreement, the Company and CareView also agreed to amend the warrant to purchase common stock agreement by reducing the warrant’s exercise price from $0.45 to $0.40 per share. At December 31, 2016, the Company determined an estimated fair value of the warrant of $0.1 million.

For carrying value and fair value information related to the Company’s Fair Value Measurements, see Note 4.