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Earnings Per Share and Restricted Stock Plan (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Earnings Per Share [Abstract]        
Weighted average shares of common stock outstanding (in shares) 7,004,346 6,057,508 6,383,149 6,048,216
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares issued under plan (in shares)     19,301  
Shares vested (in shares)     12,693  
Shares expected to vest over next year (in shares) 6,608   6,608  
Compensation expense $ 0 $ 0 $ 120,000 $ 59,000