XML 53 R40.htm IDEA: XBRL DOCUMENT v3.5.0.2
Stock-based Compensation (Narrative) (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 90 Months Ended
May 31, 2014
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Dec. 31, 2015
Dec. 31, 2008
Dec. 31, 2004
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Stock-based compensation expense   $ 889 $ 648 $ 1,865 $ 1,200        
Stock-based compensation expense to be recognized through results of operations   $ 8,865   $ 8,865   $ 8,865      
Employee Stock Award Plan-2008 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares available for issuance   1,245,650   1,245,650   1,245,650 1,394,578 1,900,000  
Additional shares authorized (in shares) 1,500,000     0   1,500,000      
Percentage of option awards vest and exercisable in installments       20.00%          
Employee Stock Award Plan-2008 [Member] | Options Awards [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Expiration period       10 years          
Employee Stock Award Plan-2008 [Member] | Restricted Stock Awards [Member] | Share-based Compensation Award, Tranche One [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period       3 years          
Employee Stock Award Plan-2008 [Member] | Restricted Stock Awards [Member] | Share-based Compensation Award, Tranche Two [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Vesting period       5 years          
Director Plan - 2005 [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of shares available for issuance   74,771   74,771   74,771 69,938   300,000