Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
| Income Statement [Abstract] |
|
|
|
|
| Royalty revenue |
$ 38
|
$ 35
|
$ 97
|
$ 109
|
| Operating expenses: |
|
|
|
|
| Research and development |
4,283
|
4,235
|
12,939
|
12,050
|
| General and administrative |
2,618
|
2,372
|
8,142
|
7,460
|
| Amortization of intangibles |
0
|
41
|
0
|
123
|
| Total operating expenses |
6,901
|
6,648
|
21,081
|
19,633
|
| Other (expense) income: |
|
|
|
|
| Interest and other income |
20
|
23
|
83
|
71
|
| Interest and other expense |
(282)
|
(203)
|
(841)
|
(213)
|
| Other (expense) income, net |
(262)
|
(180)
|
(758)
|
(142)
|
| Net loss from continuing operations |
(7,125)
|
(6,793)
|
(21,742)
|
(19,666)
|
| Net income from discontinued operations (See Note 8) |
0
|
219
|
0
|
219
|
| Net loss |
$ (7,125)
|
$ (6,574)
|
$ (21,742)
|
$ (19,447)
|
| Net loss per share: |
|
|
|
|
| Net loss per share from continuing operations, basic and diluted (in usd per share) |
$ (0.32)
|
$ (0.34)
|
$ (1.01)
|
$ (0.99)
|
| Net income per share from discontinued operations, basic and diluted (in usd per share) |
0.00
|
0.01
|
0.00
|
0.01
|
| Net loss per share, basic and diluted (in usd per share) |
$ (0.32)
|
$ (0.33)
|
$ (1.01)
|
$ (0.98)
|
| Weighted average number of shares used to compute net loss per share of common stock, basic and diluted (in shares) |
22,096,610
|
20,183,939
|
21,532,953
|
19,902,815
|
| Comprehensive loss: |
|
|
|
|
| Net loss |
$ (7,125)
|
$ (6,574)
|
$ (21,742)
|
$ (19,447)
|
| Unrealized (loss) gain on investments |
(1)
|
4
|
4
|
30
|
| Comprehensive loss |
$ (7,126)
|
$ (6,570)
|
$ (21,738)
|
$ (19,417)
|