|
M. Share-Based Compensation (Details-Minimum and Maximum) (Employee Stock Option [Member], USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Exercise Price | |||
| Outstanding, beginning balance | $ 5.936 | $ 5.877 | $ 5.838 |
| Granted | $ 9.214 | $ 6.000 | $ 6.000 |
| Exercised | $ 5.875 | $ 6.291 | $ 6.000 |
| Forfeited | $ 7.099 | $ 6.000 | $ 6.000 |
| Expired | $ 5.986 | $ 5.301 | $ 5.973 |
| Outstanding, ending balance | $ 8.379 | $ 5.936 | $ 5.877 |
| Exericsable, ending balance | $ 5.915 | ||
| Vested and expected to vest | $ 8.287 | ||
|
Minimum
|
|||
| Exercise Price | |||
| Outstanding, beginning balance | $ 3.00 | $ 3.00 | $ 3.00 |
| Granted | $ 7.50 | ||
| Exercised | $ 4.50 | $ 6.00 | $ 3.00 |
| Forfeited | $ 3.00 | ||
| Expired | $ 3.00 | $ 3.00 | $ 4.50 |
| Outstanding, ending balance | $ 3.00 | $ 3.00 | $ 3.00 |
| Exericsable, ending balance | $ 3.00 | ||
| Vested and expected to vest | $ 3.00 | ||
|
Maximum
|
|||
| Exercise Price | |||
| Outstanding, beginning balance | $ 7.50 | $ 7.50 | $ 7.50 |
| Granted | $ 12.90 | $ 6.00 | $ 6.00 |
| Exercised | $ 6.00 | $ 7.50 | $ 6.00 |
| Forfeited | $ 7.50 | $ 6.00 | $ 6.00 |
| Expired | $ 7.50 | $ 7.50 | $ 6.00 |
| Outstanding, ending balance | $ 12.90 | $ 7.50 | $ 7.50 |
| Exericsable, ending balance | $ 7.50 | ||
| Vested and expected to vest | $ 12.90 | ||