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Stock Compensation Plans (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Mar. 06, 2020
Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation $ 1,833 $ 3,170    
Options outstanding 0      
Stock bonus plan shares authorized       250,000
Shares available in stock bonus plan 86,383      
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share price (in dollars per share)     $ 0.95  
Restricted stock units expected to vest or lapse within twelve months 1,200,000      
Restricted stock units expected to vest or lapse in year two 1,100,000      
Restricted stock units expected to vest or lapse in year three 0      
Value of units vested in the period $ 900 $ 2,100    
Stock bonus plan shares authorized 4,850,000      
Shares available in stock bonus plan 1,383,848      
Subsequent Event [Member] | Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Units outstanding value     $ 500