| Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 |
|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities | ||||||||
Net loss | ||||||||
-163,440 | -161,095 | -123,145 | -111,518 | -46,732 | -22,721 | -28,123 | -20,331 | 10,485 |
Gain from discontinued operations | ||||||||
- | - | - | - | - | - | 246 | 120 | 3 |
Extraordinary gain | ||||||||
- | - | - | - | - | 2,639 | - | 0 | - |
Loss before extraordinary gain | ||||||||
- | - | - | - | -46,732 | - | - | - | - |
Loss from continuing operations | ||||||||
- | - | - | - | - | -25,360 | -28,369 | -20,451 | 10,482 |
Adjustments to reconcile net loss to cash flows used in operating activities: | ||||||||
Stock-based compensation expense | ||||||||
18,272 | 13,989 | 16,500 | 26,957 | 5,953 | 2,167 | 2,092 | 2,473 | 3,100 |
Amortization of debt discount | ||||||||
62,965 | 34,227 | 11,357 | 0 | - | - | - | - | - |
Change in fair value of derivative liability | ||||||||
-225 | 4,718 | 1,102 | 0 | - | - | - | - | - |
Depreciation and amortization | ||||||||
937 | 1,005 | 596 | 306 | 54 | 35 | 47 | - | - |
Cash received from landlord | ||||||||
0 | -637 | -1,276 | 0 | - | - | - | - | - |
Amortization of deferred lease incentive | ||||||||
244 | 244 | 163 | 0 | - | - | - | - | - |
Loss on disposal of fixed assets | ||||||||
-10 | -54 | -507 | 0 | - | - | - | - | - |
Write-down of inventory to net realizable value | ||||||||
3,467 | 27,968 | 0 | 0 | - | - | - | - | - |
Deferred income taxes | ||||||||
-235 | 80 | 90 | 700 | - | - | - | - | - |
Changes in operating assets and liabilities: | ||||||||
Depreciation and amortization | ||||||||
- | - | - | - | - | - | - | 60 | 92 |
Loss on sale of investment securities | ||||||||
- | - | - | - | - | - | - | -82 | 173 |
Impairment of investment securities | ||||||||
- | - | - | - | - | - | - | 32 | 68 |
Other current assets | ||||||||
8,029 | 340 | -1,262 | 2,860 | 802 | -104 | 334 | -1,321 | 1,013 |
Accounts receivable, net | ||||||||
2,910 | 1,580 | 2,822 | 834 | - | - | - | - | - |
Inventory | ||||||||
- | - | - | 7,771 | - | - | - | - | - |
Security deposits | ||||||||
0 | 0 | -807 | 0 | - | - | - | - | - |
Increase in security deposits | ||||||||
- | - | - | - | - | - | 51 | 50 | - |
Other assets | ||||||||
8,466 | 11 | -355 | 11 | 83 | -11 | 21 | 6 | -3 |
Accrued interest receivable | ||||||||
0 | 0 | -47 | 48 | - | -7 | 7 | -66 | 41 |
Inventory | ||||||||
19,496 | 2,300 | 29,189 | - | - | - | - | - | - |
Other current liabilities | ||||||||
28 | -238 | 0 | 0 | - | - | - | - | - |
Accounts payable and accrued expenses | ||||||||
24,023 | 88 | -8,478 | 13,569 | 6,792 | -1,658 | 3,592 | 376 | 388 |
Accrued compensation and related liabilities | ||||||||
- | - | - | - | 497 | -70 | 228 | -86 | 259 |
Deferred revenue | ||||||||
0 | -3,526 | 3,112 | 414 | - | - | - | - | -18,616 |
Other liabilities | ||||||||
-146 | -36 | 943 | 95 | 2 | 1 | - | -15 | -68 |
Net cash provided by operating activities of discontinued operations | ||||||||
- | - | - | - | - | - | 1 | -10 | 3 |
Net cash used in operating activities | ||||||||
- | - | - | - | - | -24,763 | -22,822 | -16,208 | -5,516 |
Net cash used in operating activities | ||||||||
-93,489 | -86,604 | -127,457 | -81,001 | -34,319 | -24,763 | -22,823 | -16,198 | -5,519 |
Cash flows from investing activities | ||||||||
Purchases of property, plant and equipment | ||||||||
1,257 | 2,074 | 2,777 | 1,489 | 346 | 24 | 57 | 23 | 4 |
Proceeds from sale of available-for-sale long-term securities | ||||||||
- | - | - | - | - | - | - | 1,620 | 5,557 |
Net cash used in investing activities | ||||||||
- | - | - | - | - | 4,188 | -4,168 | 19,045 | -9,697 |
Investment in held-to-maturity short-term securities | ||||||||
0 | 0 | 0 | 49,771 | 24,403 | 11,263 | 9,941 | 18,366 | 17,593 |
Proceeds from maturity of held-to-maturity short-term securities | ||||||||
0 | 0 | 11,508 | 38,263 | 24,403 | 15,475 | 5,830 | 35,814 | 2,343 |
Net cash used in investing activities | ||||||||
-1,257 | -2,074 | 8,731 | -12,997 | -346 | - | - | - | - |
Cash flows from financing activities | ||||||||
Proceeds from issuance of common stock, net of commission | ||||||||
75,720 | 0 | 118,284 | 107,532 | - | - | 30,734 | 0 | 18,438 |
Proceeds from issuance of convertible senior notes | ||||||||
0 | 0 | 125,000 | 0 | - | - | - | - | - |
Gross proceeds from public offerings | ||||||||
- | - | - | - | 80,393 | - | - | - | - |
Payments for common stock issuance costs | ||||||||
102 | 0 | 0 | - | 5,640 | - | - | - | - |
Proceeds from exercise of warrants from public offering, net | ||||||||
- | - | - | - | - | - | - | 7,305 | - |
Proceeds from exercise of stock options | ||||||||
1,146 | 198 | 1,463 | 5,054 | 931 | - | 3,096 | 1,884 | 18 |
Payments for repurchase of common stock for employee tax withholding | ||||||||
302 | 0 | 15 | 0 | - | - | - | - | - |
Net cash provided by financing activities | ||||||||
76,462 | 198 | 244,732 | 112,586 | 75,684 | - | - | - | - |
Net cash provided by financing activities | ||||||||
- | - | - | - | - | - | 33,830 | 9,189 | 18,456 |
Net (decrease) increase in cash and cash equivalents | ||||||||
-18,284 | -88,480 | 126,006 | 18,588 | 41,019 | -20,575 | 6,840 | 12,026 | 3,243 |
Reclassification of derivative liability to equity | ||||||||
62,735 | 51,404 | 0 | 0 | - | - | - | - | - |
Increase of receivable from landlord and deferred lease incentive | ||||||||
0 | 0 | 637 | 0 | - | - | - | - | - |
Issuance of common stock in connection with contingent equity rights | ||||||||
- | - | - | - | - | - | - | - | 1,365 |
Issuance of warrants to placement agent in public offering | ||||||||
- | - | - | - | - | - | - | - | 100 |