|
Income Taxes (Details 1) (USD $)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Federal tax benefit at statutory rate | $ (6,493,000) | $ (7,916,000) |
| State tax benefit - net of federal tax effect | (418,000) | (501,000) |
| Derivative expense | 1,499,000 | 1,625,000 |
| Change in fair value of derivative liability | (2,006,000) | (1,755,000) |
| Loss on settlement of accounts payable | 1,495,000 | 1,313,000 |
| Non-deductible stock compensation | 791,000 | 1,091,000 |
| Other non-deductible expenses | 45,000 | 68,000 |
| Change in valuation allowance | 5,087,000 | 6,075,000 |
| Income tax benefit | $ 0 | $ 0 |