Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation Plan (Summary Of Changes In Outstanding Awards) (Details)

v3.8.0.1
Stock-Based Compensation Plan (Summary Of Changes In Outstanding Awards) (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2017
USD ($)
$ / shares
shares
Stock Options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding at December 31, 2016 2,097
Options granted 463
Options exercised (29)
Options expired (249)
Options cancelled (100)
Options forfeited (23)
Options outstanding at December 31, 2017 2,159
Options outstanding at December 31, 2016, weighted average exercise price | $ / shares $ 8.15
Options granted, weighted average exercise price | $ / shares 6.14
Options exercised, weighted average exercise price | $ / shares 6.29
Options expired, weighted average exercise price | $ / shares 9.38
Options cancelled, weighted average exercise price | $ / shares 5.98
Options forfeited, weighted average exercise price | $ / shares 9.67
Options outstanding at December 31, 2017, weighted average exercise price | $ / shares 7.68
Options exercisable at December 31, 2017, weighted average exercise price | $ / shares $ 8.05
Options outstanding at December 31, 2017, aggregate intrinsic value | $ $ 367
Restricted Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards outstanding at December 31, 2016 370
Awards granted 500
Awards forfeited (20)
Awards outstanding at December 31, 2017 850