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Share Based Compensation (Options Outstanding And Exercisable) (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
shares
2.54 to 6.00 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise price, Lower $ 2.54
Range of exercise price, Upper 6.00
6.01 to 10.00 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise price, Lower 6.01
Range of exercise price, Upper 10.00
10.01 to 17.50 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise price, Lower 10.01
Range of exercise price, Upper 17.50
17.51 to 20.00 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise price, Lower 17.51
Range of exercise price, Upper 20.00
20.01 to 25.93 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Range of exercise price, Lower 20.01
Range of exercise price, Upper $ 25.93
Employee Stock Option and Stock Appreciation Rights (SARs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, number of awards | shares 244,147
Options Outstanding, WAEP $ 14.05
Options Outstanding, Aggregate Intrinsic Value | $ $ 177
Options Exercisable, number of awards | shares 77,430
Options Exercisable, WAEP $ 18.43
Options Exercisable, Aggregate Intrinsic Value | $ $ 177
Employee Stock Option and Stock Appreciation Rights (SARs) [Member] | 2.54 to 6.00 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, number of awards | shares 7,750
Options Outstanding, WAEP $ 3.75
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs) 4 years 11 months 5 days
Options Outstanding, Aggregate Intrinsic Value | $ $ 91
Options Exercisable, number of awards | shares 7,750
Options Exercisable, WAEP $ 3.75
Options Exercisable, Aggregate Intrinsic Value | $ $ 91
Employee Stock Option and Stock Appreciation Rights (SARs) [Member] | 6.01 to 10.00 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, number of awards | shares 12,680
Options Outstanding, WAEP $ 8.71
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs) 2 years 4 months 24 days
Options Outstanding, Aggregate Intrinsic Value | $ $ 86
Options Exercisable, number of awards | shares 12,680
Options Exercisable, WAEP $ 8.71
Options Exercisable, Aggregate Intrinsic Value | $ $ 86
Employee Stock Option and Stock Appreciation Rights (SARs) [Member] | 10.01 to 17.50 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, number of awards | shares 166,717
Options Outstanding, WAEP $ 12.01
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs) 9 years 26 days
Options Outstanding, Aggregate Intrinsic Value | $ $ 0
Options Exercisable, number of awards | shares 0
Options Exercisable, WAEP $ 0.00
Options Exercisable, Aggregate Intrinsic Value | $ $ 0
Employee Stock Option and Stock Appreciation Rights (SARs) [Member] | 17.51 to 20.00 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, number of awards | shares 23,400
Options Outstanding, WAEP $ 17.80
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs) 1 year 9 months 4 days
Options Outstanding, Aggregate Intrinsic Value | $ $ 0
Options Exercisable, number of awards | shares 23,400
Options Exercisable, WAEP $ 17.80
Options Exercisable, Aggregate Intrinsic Value | $ $ 0
Employee Stock Option and Stock Appreciation Rights (SARs) [Member] | 20.01 to 25.93 [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options Outstanding, number of awards | shares 33,600
Options Outstanding, WAEP $ 25.93
Options Outstanding, Wted. Avg. Remaining Contractual Life (yrs) 2 years 2 months 9 days
Options Outstanding, Aggregate Intrinsic Value | $ $ 0
Options Exercisable, number of awards | shares 33,600
Options Exercisable, WAEP $ 25.93
Options Exercisable, Aggregate Intrinsic Value | $ $ 0