|
Stockholders' Equity (Details) (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
|
| Options, Outstanding beginning of period (in shares) |
946,281 |
| Options, granted (in shares) |
354,027 |
| Options, exercised (in shares) |
(3,761) |
| Options, forfeited (in shares) |
(8,610) |
| Options, cancelled (in shares) |
(23,592) |
| Options, Outstanding end of period (in shares) |
1,264,345 |
| Options, exercisable ending of period (in shares) |
915,627 |
| Options, Outstanding, Weighted Average Exercise Price, beginning of period (in dollars per share) |
$ 3.07 |
| Options, Weighted Average Exercise Price, granted (in dollars per share) |
$ 4.29 |
| Options, Weighted Average Exercise Price, exercised (in dollars per share) |
$ 2.81 |
| Options, Weighted Average Exercise Price, forfeited (in dollars per share) |
$ 5.53 |
| Options, Weighted Average Exercise Price, cancelled (in dollars per share) |
$ 11.25 |
| Options, Outstanding, Weighted Average Exercise Price, end of period (in dollars per share) |
$ 3.25 |
| Options, Weighted Average Exercise Price, exercisable end of period (in dollars per share) |
$ 2.84 |