Stockholders' Equity - Options Outstanding and Exercisable (Details)
|
12 Months Ended |
|
Dec. 31, 2015
$ / shares
shares
|
|---|
| OPTIONS OUTSTANDING |
|
| Number of Shares Outstanding (in shares) | shares |
602,207
|
| Weighted Average Remaining Contractual Life (in years) |
8 years 1 month 13 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 8.58
|
| OPTIONS EXERCISABLE |
|
| Number of Shares Exercisable (in shares) | shares |
304,610
|
| Weighted Average Remaining Contractual Life (in years) |
7 years 1 month 17 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 9.38
|
| Exercise price, range one |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of Exercise Prices, lower limit (in dollars per share) |
2.30
|
| Range of Exercise Prices, upper limit (in dollars per share) |
$ 4.00
|
| OPTIONS OUTSTANDING |
|
| Number of Shares Outstanding (in shares) | shares |
61,218
|
| Weighted Average Remaining Contractual Life (in years) |
7 years 3 months 7 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 2.33
|
| OPTIONS EXERCISABLE |
|
| Number of Shares Exercisable (in shares) | shares |
60,586
|
| Weighted Average Remaining Contractual Life (in years) |
7 years 3 months 7 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 2.33
|
| Exercise price, range two |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of Exercise Prices, lower limit (in dollars per share) |
4.01
|
| Range of Exercise Prices, upper limit (in dollars per share) |
$ 4.45
|
| OPTIONS OUTSTANDING |
|
| Number of Shares Outstanding (in shares) | shares |
132,778
|
| Weighted Average Remaining Contractual Life (in years) |
8 years 26 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 4.10
|
| OPTIONS EXERCISABLE |
|
| Number of Shares Exercisable (in shares) | shares |
114,187
|
| Weighted Average Remaining Contractual Life (in years) |
8 years 26 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 4.10
|
| Exercise price, range three |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of Exercise Prices, lower limit (in dollars per share) |
4.46
|
| Range of Exercise Prices, upper limit (in dollars per share) |
$ 5.48
|
| OPTIONS OUTSTANDING |
|
| Number of Shares Outstanding (in shares) | shares |
198,200
|
| Weighted Average Remaining Contractual Life (in years) |
9 years 1 month 13 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 5.42
|
| OPTIONS EXERCISABLE |
|
| Number of Shares Exercisable (in shares) | shares |
25,700
|
| Weighted Average Remaining Contractual Life (in years) |
8 years 6 months 15 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 5.07
|
| Exercise price, range four |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of Exercise Prices, lower limit (in dollars per share) |
5.49
|
| Range of Exercise Prices, upper limit (in dollars per share) |
$ 13.58
|
| OPTIONS OUTSTANDING |
|
| Number of Shares Outstanding (in shares) | shares |
108,011
|
| Weighted Average Remaining Contractual Life (in years) |
7 years 6 months 15 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 8.36
|
| OPTIONS EXERCISABLE |
|
| Number of Shares Exercisable (in shares) | shares |
62,137
|
| Weighted Average Remaining Contractual Life (in years) |
6 years 9 months 22 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 8.46
|
| Exercise price, range five |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of Exercise Prices, lower limit (in dollars per share) |
13.59
|
| Range of Exercise Prices, upper limit (in dollars per share) |
$ 71.90
|
| OPTIONS OUTSTANDING |
|
| Number of Shares Outstanding (in shares) | shares |
102,000
|
| Weighted Average Remaining Contractual Life (in years) |
7 years 4 months 10 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 24.56
|
| OPTIONS EXERCISABLE |
|
| Number of Shares Exercisable (in shares) | shares |
42,000
|
| Weighted Average Remaining Contractual Life (in years) |
3 years 11 months 19 days
|
| Weighted Average Exercise Price (in dollars per share) |
$ 37.89
|