v2.4.0.8
10. Share-Based Compensation (Details-Option activity) (Options, USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Options
 
Number of Shares  
Outstanding, beginning balance 1,468,000
Granted 108,000
Exercised (91,000)
Forfeited (14,000)
Expired   
Outstanding, ending balance 1,471,848
Exericsable, ending balance 301,000
Vested and expected to vest 1,347,000
Weighted Average Exercise Price  
Outstanding, beginning balance $ 8.38
Granted $ 13.84
Exercised $ 5.99
Forfeited $ 8.43
Expired $ 6.75
Outstanding, ending balance $ 8.93
Exericsable, ending balance $ 6.35
Vested and expected to vest $ 8.84
Weighted Average Remaining Contractual Life  
Outstanding, ending balance 8 years 6 months 23 days
Exercisable 6 years 9 months 19 days
Vested and expected to vest 8 years 6 months 5 days
Aggregate Intrinsic Value  
Outstanding, beginning balance $ 9,731
Exercised 1,447
Forfeited 209
Expired 1
Outstanding, ending balance 20,992
Exercisable 5,069
Vested and expected to vest $ 19,342