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Stock Based Compensation (Narrative) (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 02, 2014
$ / shares
shares
Sep. 30, 2015
USD ($)
item
shares
Sep. 30, 2015
USD ($)
shares
Sep. 30, 2014
USD ($)
May. 14, 2015
$ / shares
Dec. 31, 2014
USD ($)
shares
Aug. 25, 2014
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock option or stock appreciation term, maximum     10 years        
Share repurchase program, authorized amount | $             $ 3,000
Shares repurchased   902,000 902,000     885,000  
Shares repurchased, value | $   $ 8,202 $ 8,202     $ 8,077  
Special cash dividend, amount per share | $ / shares         $ 2.60    
August 25, 2014 Share Repurchase Program [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares repurchased   11,057 11,057        
Shares repurchased, value | $   $ 100 $ 100        
Series A Junior Participating Preferred Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of rights per share 1            
Number of shares per right 0.001            
Preferred shares, par value | $ / shares $ 0.01            
Purchase price per share | $ / shares $ 22.20            
Percentage of common stock needed to be acquired for rights to become exercisable 20.00%            
Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock-based compensation expense | $     700 $ 700      
Total fair value of vested restricted stock | $     800        
Total unrecognized stock options compensation expense | $   $ 600 $ 600        
Weighted average period of recognition for total unrecognized stock options compensation expense     2 years        
Stock Options [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Options granted     0        
Long-Term Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares authorized for plan   1,100,000 1,100,000        
Shares available for grant   382,198 382,198     420,392  
Minimum exercise price per share of stock options as a percentage of grant date fair market value     100.00%        
Stock-based compensation expense | $   $ 200          
Number of changes to stock based compensation | item   2          
Minimum [Member] | Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     2 years        
Maximum [Member] | Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     3 years