|
Accounting for Stock-Based Compensation (Details 1) (USD $)
|
6 Months Ended |
|
Jun. 30, 2012
|
| Summary of stock options outstanding and exercisable |
|
| Number Outstanding |
3,011,480 |
| Weighted Average Remaining Contractual Life |
2 years 3 months 18 days |
| Weighted Average Exercise Price |
$ 1.51 |
|
Range One [Member]
|
|
| Summary of stock options outstanding and exercisable |
|
| Minimum Range of Exercise Price |
$ 1.15 |
| Maximum Range of Exercise Price |
$ 1.36 |
| Number Outstanding |
2,288,000 |
| Weighted Average Remaining Contractual Life |
1 year 10 months 24 days |
| Weighted Average Exercise Price |
$ 1.15 |
|
Range Two [Member]
|
|
| Summary of stock options outstanding and exercisable |
|
| Minimum Range of Exercise Price |
$ 2.00 |
| Maximum Range of Exercise Price |
$ 3.00 |
| Number Outstanding |
539,980 |
| Weighted Average Remaining Contractual Life |
3 years 2 months 12 days |
| Weighted Average Exercise Price |
$ 2.33 |
|
Range Three [Member]
|
|
| Summary of stock options outstanding and exercisable |
|
| Minimum Range of Exercise Price |
$ 3.10 |
| Maximum Range of Exercise Price |
$ 4.65 |
| Number Outstanding |
155,000 |
| Weighted Average Remaining Contractual Life |
5 years 3 months 18 days |
| Weighted Average Exercise Price |
$ 3.17 |
|
Range Four [Member]
|
|
| Summary of stock options outstanding and exercisable |
|
| Minimum Range of Exercise Price |
$ 4.99 |
| Maximum Range of Exercise Price |
$ 6.96 |
| Number Outstanding |
28,500 |
| Weighted Average Remaining Contractual Life |
1 year 6 months |
| Weighted Average Exercise Price |
$ 5.47 |