|
Stock Options and Warrants (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Shares granted (shares) | 8,000 | 50,000 | 50,000 |
| Exercise price (usd per share) | $ 7,170.00 | $ 4.95 | $ 1.59 |
| Total unrecognized compensation | $ 617 | ||
| Vesting period for unrecognized compensation cost to be recognized | 2 years | ||
| Proceeds from stock options exercised | 2,770 | 1,013 | 1 |
| Second Amended And Restated 2005 Equity Incentive Plan [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Shares reserved for future issuance (shares) | 3,500,000 | ||
| Securities reserved for future issuance (shares) | 2,534,000 | ||
| Stock-based compensation expense | 636 | 385 | 647 |
| Total unrecognized compensation | $ 617 | ||
| Vesting period for unrecognized compensation cost to be recognized | 2 years | ||