XML 76 R61.htm IDEA: XBRL DOCUMENT v3.3.1.900
Employee Benefit Plans and Stock-based Compensation - Options (Details) - 2015 Equity Incentive Plan - Options [Member] - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Number of options outstanding [Roll Forward]        
Options outstanding, beginning of period (in shares) 3,198,000 2,671,000 2,727,000  
Granted (in shares) 866,000 712,000 488,000  
Exercised (in shares) (119,000) (111,000) (331,000)  
Canceled and expired (in shares) (166,000) (74,000) (213,000)  
Options outstanding, end of period (in shares) 3,779,000 3,198,000 2,671,000 2,727,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number 3,691,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number 2,237,000      
Weighted average exercise price [Roll Forward]        
Options outstanding, beginning of period (in dollars per share) $ 3.12 $ 3.29 $ 3.28  
Granted (in dollars per share) 2.19 2.40 2.38  
Exercised (in dollars per share) 1.38 1.21 1.62  
Canceled and expired (in dollars per share) 3.03 5.18 3.60  
Options outstanding, end of period (in dollars per share) 2.97 $ 3.12 $ 3.29 $ 3.28
Options vested and expected to vest as of December 31, 2014 (in dollars per share) 2.99      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price $ 3.42      
Weighted average Remaining Contractual Life [Abstract]        
Options outstanding 6 years 3 months 4 days 6 years 11 months 12 days 6 years 8 months 16 days 6 years 8 months 16 days
Options vested and unvested options expected to vest, net of forfeitures, end of period 6 years 2 months 9 days      
Option exercisable, end of period 4 years 4 months 28 days      
Aggregate Intrinsic Value [Abstract]        
Options outstanding, beginning of period $ 1,247 $ 893 $ 1,353  
Options outstanding, end of period 764 $ 1,247 $ 893 $ 1,353
Options vested and expected to vest, end of period 742      
Options exercisable, end of period $ 453