| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 |
|---|---|---|---|---|---|---|
Revenues | ||||||
9,131 | 7,915 | 9,934 | - | - | - | - |
Revenues | ||||||
- | - | - | 19,214 | 10,713 | 11,213 | 12,964 |
Cost of revenues | ||||||
6,264 | 6,531 | 13,002 | 14,445 | 6,478 | 6,513 | 8,205 |
Gross profit | ||||||
2,867 | 1,384 | -3,068 | 4,769 | 4,235 | 4,700 | 4,759 |
Operating expenses: | ||||||
Research and development | ||||||
5,692 | 6,009 | 11,319 | 15,536 | 15,694 | 11,224 | 15,973 |
Selling, general and administrative | ||||||
16,534 | 18,404 | 25,120 | 39,950 | 29,231 | 18,503 | 25,758 |
Restructuring charges | ||||||
- | - | 1,285 | - | - | - | - |
Litigation settlement | ||||||
- | - | 1,760 | - | - | - | - |
Total operating expenses | ||||||
22,226 | 24,413 | 39,484 | 55,486 | 44,925 | 29,727 | 41,731 |
Loss from operations | ||||||
-19,359 | -23,029 | -42,552 | -50,717 | -40,690 | -25,027 | -36,972 |
Interest income | ||||||
288 | 214 | 108 | 125 | 40 | 2 | 11 |
Interest expense | ||||||
1,480 | 5,692 | 6,299 | 5,524 | 5,167 | 6,016 | 2,934 |
Other (expense) income, net | ||||||
1,101 | 949 | 11 | -12 | -1,527 | -909 | 5 |
Loss before provision for income taxes | ||||||
- | - | - | - | -47,344 | -31,950 | -39,890 |
Provision for income taxes | ||||||
- | - | - | - | - | 14 | 11 |
Net loss and comprehensive loss | ||||||
-19,450 | -27,558 | -48,732 | -56,128 | -47,344 | -31,964 | -39,901 |
Accretion of preferred stock dividends | ||||||
3,580 | 2,918 | - | - | - | - | - |
Deemed dividend arising from beneficial conversion feature of convertible preferred stock | ||||||
- | 5,216 | - | - | - | - | - |
Adjustment to net loss resulting from convertible preferred stock modification | ||||||
- | - | - | - | 2,384 | - | - |
Net loss attributable to common stockholders | ||||||
-23,030 | -35,692 | -48,732 | - | -49,728 | -31,964 | -39,901 |
Net loss per share attributable to common stockholders, basic and diluted (in dollars per share) | ||||||
-3.18 | -33.42 | -74.74 | -135.57 | -175.10 | -5,327.33 | -170.52 |
Weighted average common shares used to compute net loss per share, basic and diluted (in shares) | ||||||
7,239 | 1,068 | 652 | 414 | 284 | 6 | 234 |