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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net loss | $ (20,941) | $ (29,771)
Adjustments to reconcile loss to net cash used in operating activities: |  |
Depreciation and amortization | 21 | 44
Loss on sale of fixed assets |  | 48
Stock-based compensation | 3,351 | 3,597
Amortization of debt discount and debt issuance costs | 563 | 2,473
Amortization of intangible asset | 162 | 161
Loss on change in fair value of derivative liabilities |  | 1,250
Deferred income taxes |  | (446)
Changes in assets and liabilities: |  |
Accounts receivable, net | (9,465) | (1,193)
Inventory | (3,372) | (2,359)
Prepaid and other current assets | 2,198 | (2,953)
Other long-term assets | 89 |
Accrued interest payable | (2,267) | (2,015)
Deferred revenue | (293) | 1,763
Accounts payable and other current liabilities | 15,580 | 4,531
Other long-term liabilities | 457 | (35)
Net cash used in operating activities | (13,917) | (24,905)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchases of equipment | (12) | (21)
Net cash used in investing activities | (12) | (21)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from issuance of convertible debt | 30,000 |
Payment of debt issuance costs | (1,207) |
Proceeds from exercise of stock options, net of transaction costs | 296 | 22
Repurchase of exchangeable senior notes | (15,107) |
Taxes paid related to stock-based awards | (2,228) | (694)
Net cash provided by (used in) financing activities | 11,754 | (672)
NET DECREASE IN CASH AND CASH EQUIVALENTS | (2,175) | (25,598)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD | 98,251 | 106,961
CASH AND CASH EQUIVALENTS, END OF PERIOD | 96,076 | 81,363
Cash paid during the year for: |  |
Interest | 4,111 | 5,138
Income taxes | $ 64 | $ 267

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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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