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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended 36 Months Ended
Jul. 31, 2018
Jan. 12, 2018
Jul. 31, 2017
Jan. 31, 2017
Jan. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock-based compensation           $ 3,198 $ 1,162  
Income tax benefit recognized           $ 681 $ 330  
Employee Stock Option [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options exercised, shares           0 0  
Performance Stock Options [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award contractual term 10 years 10 years   3 years 3 years      
Options granted   146,590 350,000          
Granted (shares)               0
Derived service period           10 years    
Unearned compensation related to options           $ 971   $ 971
Remaining service period           12 months    
Performance Stock Options [Member] | Share-based Compensation Award, Tranche One [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage   34.00% 34.00%          
Threshold Stock Price   $ 5.00 $ 5.00          
Performance Stock Options [Member] | Share-based Compensation Award, Tranche Two [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage   33.00% 33.00%          
Threshold Stock Price   $ 10.00 $ 10.00          
Performance Stock Options [Member] | Share-based Compensation Award, Tranche Three [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting percentage   33.00% 33.00%          
Threshold Stock Price   $ 15.00 $ 15.00          
Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Unrecognized compensation expense           $ 969   969
Granted (shares)           85,182 72,503  
weighted-average grant-date fair value           $ 16.16 $ 15.44  
Fair value of stock awards           $ 622 $ 475  
Remaining requisite service period           20 months    
Time-Vested Stock Options [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options exercised, shares            
Options granted           89,445  
Unearned compensation related to options           $ 444   $ 444
Remaining service period           24 months    
The 2005 Long Term Incentive Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award, Number of Shares Authorized           2,459,616   2,459,616
Shares available for grant           376,343   376,343
The 2005 Long Term Incentive Plan [Member] | Employee Stock Option [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award contractual term           10 years    
The 2018 Long Term Incentive Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award, Number of Shares Authorized           1,250,000   1,250,000
Shares available for grant           1,250,000   1,250,000
Minimum [Member] | The 2005 Long Term Incentive Plan [Member] | Employee Stock Option [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award Vesting Period           1 year    
Minimum [Member] | The 2005 Long Term Incentive Plan [Member] | Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award Vesting Period           1 year    
Maximum [Member] | The 2005 Long Term Incentive Plan [Member] | Employee Stock Option [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award Vesting Period           3 years    
Maximum [Member] | The 2005 Long Term Incentive Plan [Member] | Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award Vesting Period           3 years