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Stock Plans, Share-Based Payments and Warrants (Details 5)
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12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
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Dec. 31, 2012
|
|
| Class of Warrant or Right [Line Items] | ||
| Outstanding warrants at end of year | 13,887,598 | 14,679,971 |
|
Class D Warrants [Member]
|
||
| Class of Warrant or Right [Line Items] | ||
| Outstanding warrants at beginning of year | 8,806,575 | 9,253,772 |
| Exercised | 0 | (352,034) |
| Expired | 0 | (95,163) |
| Outstanding warrants at end of year | 8,806,575 | 8,806,575 |
|
Class D Warrants - Lambda [Member]
|
||
| Class of Warrant or Right [Line Items] | ||
| Outstanding warrants at beginning of year | 8,806,575 | 8,806,575 |
| Exercised | 0 | 0 |
| Expired | 0 | 0 |
| Outstanding warrants at end of year | 8,806,575 | 8,806,575 |
|
Class D Warrants - Other [Member]
|
||
| Class of Warrant or Right [Line Items] | ||
| Outstanding warrants at beginning of year | 0 | 447,197 |
| Exercised | 0 | (352,034) |
| Expired | 0 | (95,163) |
| Outstanding warrants at end of year | 0 | 0 |