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Stock-Based Compensation (Narrative) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
ShareBasedCompensationPlan
shares
Mar. 31, 2016
USD ($)
shares
Dec. 31, 2016
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock-based compensation plans | ShareBasedCompensationPlan 3    
Compensation cost | $ $ 61 $ 30  
Total income tax effect recognized for share-based compensation arrangements | $ $ 21 $ 8  
Shares available to be issued 1,500,000    
Shares expired 300 0  
Shares cancelled or forfeited   7,500  
Nonvested stock options, expected to vest    
2003 Equity Compensation Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares Authorized 100,000    
2009 Equity Compensation Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 546,425    
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expiration period 10 years    
Shares Granted 0 0  
Stock Options Exercised 0 0  
Stock Options [Member] | 1999 Stock-Based Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares Authorized 38,778    
Stock Options [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting periods 1 year    
Stock Options [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting periods 3 years    
Restricted Stock [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost | $ $ 572 $ 237  
Shares issued 0 0  
Shares, Nonvested 419,333   425,666
Shares, Forfeited 6,333 0  
Shares, Vested 0 0  
Restricted Stock [Member] | 1999 Stock-Based Incentive Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares Authorized 15,511    
Restricted Stock [Member] | 2003 Equity Compensation Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares Authorized 30,000    
Restricted Stock [Member] | 2009 Equity Compensation Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares Authorized 200,000    
Restricted Stock [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting periods 1 year    
Restricted Stock [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting periods 3 years