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Stock-based Compensation (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Jan. 04, 2017
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2017
Jun. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Allocated share-based compensation expense   $ 62 $ 57 $ 170 $ 169 $ 108  
Nonvested awards, unrecognized stock-based compensation expense   434   $ 434      
Expected term for cost to be recognized (in years)       5 years      
Incentive Compensation Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock reserved for issuance (in shares)             1,630,000
Nonvested awards, unrecognized stock-based compensation expense   $ 94   $ 94      
Performance Share Award Agreement              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock awards (in shares) 161,766            
Unvested awards (in shares)   129,000   129,000