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Common Stock, Common Stock Options and Warrants (Details 2) (USD $)
|
6 Months Ended | 12 Months Ended |
|---|---|---|
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Jun. 30, 2012
|
Dec. 31, 2011
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|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Risk free interest rate | 1.36% | 1.93% |
| Expected volatility factor | 80.74% | 74.82% |
| Expected option term in years | 6 years | 6 years |
| Dividends | $ 0.00 | $ 0.00 |
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Maximum
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||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Expected option term in years | 6 years 6 months | |
| Forfeitures for senior executives and non-senior executives | 3.00% | 3.00% |
|
Minimum
|
||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Expected option term in years | 3 years 6 months | |
| Forfeitures for senior executives and non-senior executives | 0.00% | 0.00% |