Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Schedule Of Allocation of Share-Based Compensation Costs) (Details)

v3.7.0.1
Stock-Based Compensation (Schedule Of Allocation of Share-Based Compensation Costs) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 370 $ 389 $ 783 $ 740
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 118 156 244 304
Restricted stock awards and restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 210 233 419 436
Performance stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 42 0 120 0
Cost of revenues        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 18 25 32 18
Operating expenses        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 352 $ 364 $ 751 $ 722