Stockholders' Equity - Summary of Restricted Stock Activity (Details) - $ / shares
|
1 Months Ended |
3 Months Ended |
12 Months Ended |
Jul. 31, 2014 |
Sep. 30, 2013 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Restricted Stock Outstanding |
|
|
|
|
|
| Beginning balance (in shares) |
|
|
969,549
|
1,107,549
|
1,305,638
|
| Ending balance (in shares) |
|
|
14,250
|
969,549
|
1,107,549
|
| Restricted stock |
|
|
|
|
|
| Restricted Stock Outstanding |
|
|
|
|
|
| Beginning balance (in shares) |
|
|
0
|
35,869
|
41,461
|
| Granted (in shares) |
|
5,122
|
0
|
0
|
0
|
| Vested (in shares) |
(1,220)
|
|
|
(35,869)
|
(5,592)
|
| Canceled (in shares) |
|
|
0
|
(2,439)
|
(1,463)
|
| Ending balance (in shares) |
|
|
0
|
0
|
35,869
|
| Weighted Average Grant Date Fair Value |
|
|
|
|
|
| Outstanding at beginning of period (in dollars per share) |
|
|
|
$ 7.31
|
$ 7.31
|
| Granted (in dollars per share) |
|
$ 4.10
|
|
0.00
|
0.00
|
| Vested (in dollars per share) |
|
|
|
$ 7.31
|
7.31
|
| Outstanding at end of period (in dollars per share) |
|
|
|
|
$ 7.31
|
| Restricted Stock Units (RSUs) |
|
|
|
|
|
| Restricted Stock Outstanding |
|
|
|
|
|
| Beginning balance (in shares) |
|
|
0
|
|
|
| Granted (in shares) |
|
|
73,750
|
|
|
| Canceled (in shares) |
|
|
(16,250)
|
|
|
| Ending balance (in shares) |
|
|
57,500
|
0
|
|
| Weighted Average Grant Date Fair Value |
|
|
|
|
|
| Outstanding at beginning of period (in dollars per share) |
|
|
$ 0.00
|
|
|
| Granted (in dollars per share) |
|
|
6.92
|
|
|
| Canceled (in dollars per share) |
|
|
5.54
|
|
|
| Outstanding at end of period (in dollars per share) |
|
|
$ 7.31
|
$ 0.00
|
|