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Stock-Based Compensation (Narrative) (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 20, 2018
Sep. 30, 2018
USD ($)
shares
Sep. 30, 2017
USD ($)
shares
Sep. 30, 2018
USD ($)
ShareBasedCompensationPlan
shares
Sep. 30, 2017
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of stock-based compensation plans | ShareBasedCompensationPlan       2  
Compensation cost | $   $ 99 $ 59 $ 290 $ 181
Total income tax effect recognized for share-based compensation arrangements | $   $ 21 $ 20 $ 61 $ 62
Reverse stock split ratio 5.5        
Shares available to be issued   272,727   272,727  
Shares expired       72 54
Shares cancelled or forfeited       1,401 545
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   18,181   18,181  
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   70,457   70,457  
Stock Options [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Expiration period       10 years  
Shares Granted   0 0 0 0
Stock Options Exercised   0 0 0 0
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 | $   $ 544 $ 439 $ 544 $ 439
Nonvested shares, granted       727 0
Shares, Forfeited       7,999 2,606
Shares, Vested       0 0
Restricted Stock [Member] | 2003 Equity Compensation Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of Shares Authorized   5,454   5,454  
Restricted Stock [Member] | 2009 Equity Compensation Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of Shares Authorized   36,363   36,363  
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