Debt	9 Months Ended
Sep. 30, 2015
Debt
Debt	8. Debt Senior Secured Term Loan In April 2013, as amended in June 2014, the Company entered into a senior secured term loan arrangement (the "Secured Loan Arrangement") with ROS Acquisition LP ("ROS"). The Secured Loan Arrangement provided for up to $40.0 million in borrowing capacity ("Credit Agreement"), a warrant to purchase shares of Common Stock, and an agreement to pay royalties on Company revenues ("Royalty Agreement"). The Company borrowed $20.0 million on the effective date of the Credit Agreement. The Credit Agreement provided for an interest rate equal to the greater of (a) LIBOR or (b) 1% per annum plus the applicable margin of 8% per annum or 9% floor on the outstanding balance of the term loan. The Royalty Agreement obligated the Company to make royalty payments of 1% applied to total Company fiscal year revenues of up to $50.0 million and 1.5% applied to fiscal year incremental revenues above $50.0 million. For the nine months ended September 30, 2015, the Company incurred approximately $1.4 million and $1.8 million in interest expenses under the Credit Agreement and royalty expenses under the Royalty Agreement, respectively, which are due and payable quarterly. For the nine months ended September 30, 2014, the Company incurred approximately $1.4 million and $1.4 million in interest expenses under the Credit Agreement and royalty expenses under the Royalty Agreement, respectively. The interest on the loan is set forth in the financial statements as interest expense below loss from operations. The effective yield was approximately 21.1% for the nine months ended September 30, 2015. Under the terms of the Secured Loan Arrangement, the Company issued ROS a warrant to purchase 376,691 shares of common stock with an exercise price of $2.3229 per share. The Credit Agreement principal is due and payable on April 18, 2019. The Company could at its option, prepay the term loan borrowings subject to a prepayment premium equivalent to 10% of the outstanding principal. Prepayment of the amount due under the Credit Agreement does not eliminate the royalty payment obligation, which expires no later than April 18, 2023. The Company could at its option, terminate the royalty obligation for a fixed dollar amount with cumulative royalty payments applied against the royalty obligation. ROS maintained a security interest in substantially all of the Company's tangible and intangible assets, including intellectual property, to secure any outstanding amounts under the Credit Agreement. The Credit Agreement contained customary events of default, conditions to borrowing and covenants, including restrictions on the ability to dispose of assets, make acquisitions, incur debt, incur liens and make distributions to stockholders, including dividends. The Credit Agreement also included a financial covenant requiring the maintenance of minimum liquidity of $5.0 million and minimum revenue thresholds. During the continuance of an event of a default, ROS could accelerate amounts outstanding, terminate the credit facility and foreclose on all collateral. As of September 30, 2015, the Company was in compliance with all covenants under the terms of the Secured Loan Arrangement with ROS. In October 2015, the Company paid off its obligations from the Secured Loan Arrangement with ROS. See Note 16 for additional details. Credit Line Agreement In September 2015, the Company entered into the Credit Line with UBS providing for a $50.0 million revolving line of credit which can be drawn down in increments at any time. The Credit Line bears interest one-month LIBOR plus 0.65%, and presently equals approximately 0.84% per annum. The Credit Line is secured by a first priority lien and security interest in the Company’s money market and marketable securities held in its managed investment account with UBS. Equipment Financing Facility In April 2013, the Company entered into an equipment financing facility (the “Equipment Financing Facility”) with a financial institution pursuant to which the Company could borrow up to $5.0 million to fund equipment purchases. The financial institution maintained an interest in the underlying equipment until payment in full of the loan. The loan bore interest at the financial institution's prime reference rate (defined as the 30-day LIBOR rate plus 2.50%) plus 4.10%, which equaled 7.35% upon closing of the agreement. In December 2014, the Company amended the Equipment Financing Facility increasing the loan amount to $5.9 million to fund equipment purchased. The Company paid interest on the unpaid principal at the financial institution's prime reference rate plus 3.10%, which equaled 6.35%. Under the terms of the Equipment Financing Facility, the loan would mature on May 31, 2017. Under the terms of the Equipment Financing Facility, the Company would be required to make 30 payments of principal and interest through the maturity of the loan in May 2017. In September 2015, the Company paid off the remaining principal balance of the equipment financing facility. The Company made a payment of $4.1 million, comprising of principal, interest and administrative fees settling all of its obligations under the loan.

8. Debt

Senior Secured Term Loan

In April 2013, as amended in June 2014, the Company entered into a senior secured term loan arrangement (the "Secured Loan Arrangement") with ROS Acquisition LP ("ROS"). The Secured Loan Arrangement provided for up to $40.0 million in borrowing capacity ("Credit Agreement"), a warrant to purchase shares of Common Stock, and an agreement to pay royalties on Company revenues ("Royalty Agreement"). The Company borrowed $20.0 million on the effective date of the Credit Agreement. The Credit Agreement provided for an interest rate equal to the greater of (a) LIBOR or (b) 1% per annum plus the applicable margin of 8% per annum or 9% floor on the outstanding balance of the term loan. The Royalty Agreement obligated the Company to make royalty payments of 1% applied to total Company fiscal year revenues of up to $50.0 million and 1.5% applied to fiscal year incremental revenues above $50.0 million. For the nine months ended September 30, 2015, the Company incurred approximately $1.4 million and $1.8 million in interest expenses under the Credit Agreement and royalty expenses under the Royalty Agreement, respectively, which are due and payable quarterly. For the nine months ended September 30, 2014, the Company incurred approximately $1.4 million and $1.4 million in interest expenses under the Credit Agreement and royalty expenses under the Royalty Agreement, respectively. The interest on the loan is set forth in the financial statements as interest expense below loss from operations. The effective yield was approximately 21.1% for the nine months ended September 30, 2015. Under the terms of the Secured Loan Arrangement, the Company issued ROS a warrant to purchase 376,691 shares of common stock with an exercise price of $2.3229 per share. The Credit Agreement principal is due and payable on April 18, 2019. The Company could at its option, prepay the term loan borrowings subject to a prepayment premium equivalent to 10% of the outstanding principal. Prepayment of the amount due under the Credit Agreement does not eliminate the royalty payment obligation, which expires no later than April 18, 2023. The Company could at its option, terminate the royalty obligation for a fixed dollar amount with cumulative royalty payments applied against the royalty obligation.

ROS maintained a security interest in substantially all of the Company's tangible and intangible assets, including intellectual property, to secure any outstanding amounts under the Credit Agreement. The Credit Agreement contained customary events of default, conditions to borrowing and covenants, including restrictions on the ability to dispose of assets, make acquisitions, incur debt, incur liens and make distributions to stockholders, including dividends. The Credit Agreement also included a financial covenant requiring the maintenance of minimum liquidity of $5.0 million and minimum revenue thresholds. During the continuance of an event of a default, ROS could accelerate amounts outstanding, terminate the credit facility and foreclose on all collateral. As of September 30, 2015, the Company was in compliance with all covenants under the terms of the Secured Loan Arrangement with ROS.

In October 2015, the Company paid off its obligations from the Secured Loan Arrangement with ROS. See Note 16 for additional details.

Credit Line Agreement

In September 2015, the Company entered into the Credit Line with UBS providing for a $50.0 million revolving line of credit which can be drawn down in increments at any time. The Credit Line bears interest one-month LIBOR plus 0.65%, and presently equals approximately 0.84% per annum. The Credit Line is secured by a first priority lien and security interest in the Company’s money market and marketable securities held in its managed investment account with UBS.

Equipment Financing Facility

In April 2013, the Company entered into an equipment financing facility (the “Equipment Financing Facility”) with a financial institution pursuant to which the Company could borrow up to $5.0 million to fund equipment purchases. The financial institution maintained an interest in the underlying equipment until payment in full of the loan. The loan bore interest at the financial institution's prime reference rate (defined as the 30-day LIBOR rate plus 2.50%) plus 4.10%, which equaled 7.35% upon closing of the agreement. In December 2014, the Company amended the Equipment Financing Facility increasing the loan amount to $5.9 million to fund equipment purchased. The Company paid interest on the unpaid principal at the financial institution's prime reference rate plus 3.10%, which equaled 6.35%. Under the terms of the Equipment Financing Facility, the loan would mature on May 31, 2017. Under the terms of the Equipment Financing Facility, the Company would be required to make 30 payments of principal and interest through the maturity of the loan in May 2017.

In September 2015, the Company paid off the remaining principal balance of the equipment financing facility. The Company made a payment of $4.1 million, comprising of principal, interest and administrative fees settling all of its obligations under the loan.