|
Share-Based Compensation (Details) (USD $)
|
12 Months Ended |
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
Stock Warrants [Member]
|
|
|
| Details of the outstanding rights, options and warrants and value of such rights, options and warrants |
|
|
| Options Outstanding, Beginning Balance |
1,749,874 |
1,747,347 |
| Number of shares, Granted |
|
4,667 |
| Number of shares, Exercised |
(341,941) |
|
| Number of shares, Cancelled or expired |
(3,334) |
(2,140) |
| Options Outstanding, Ending Balance |
1,404,599 |
1,749,874 |
| Weighted average exercise price per share, Outstanding, Beginning Balance |
$ 3.03 |
$ 3.07 |
| Weighted average exercise price per share, Granted |
|
$ 4.50 |
| Weighted average exercise price per share, Exercised |
$ 1.49 |
|
| Weighted average exercise price per share, Cancelled or expired |
$ 10.50 |
$ 36.00 |
| Weighted average exercise price per share, Outstanding, Ending balance |
$ 3.39 |
$ 3.03 |
|
Stock options [Member]
|
|
|
| Details of the outstanding rights, options and warrants and value of such rights, options and warrants |
|
|
| Options Outstanding, Beginning Balance |
5,557 |
5,557 |
| Number of shares, Granted |
|
|
| Number of shares, Exercised |
|
|
| Number of shares, Cancelled or expired |
|
|
| Options Outstanding, Ending Balance |
5,557 |
5,557 |
| Weighted average exercise price per share, Outstanding, Beginning Balance |
$ 20.25 |
$ 20.25 |
| Weighted average exercise price per share, Granted |
|
|
| Weighted average exercise price per share, Exercised |
|
|
| Weighted average exercise price per share, Cancelled or expired |
|
|
| Weighted average exercise price per share, Outstanding, Ending balance |
$ 20.25 |
$ 20.25 |