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Stock Compensation (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Oct. 13, 2016
Sep. 19, 2008
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Intrinsic value of options outstanding (in dollars)     $ 58,000    
Stock compensation $ 411,000 $ 0      
Unrecognized compensation cost related to non-vested restricted stock     $ 650,000    
Weighted Average Exercise Price          
Beginning balance (in dollars per share) $ 1.96 $ 1.96      
Granted (in dollars per share) 0.00 0.00      
Forfeited (in dollars per share) (2.15) (2.21)      
Exercised (in dollars per share) (1.89) (1.31)      
Ending balance (in dollars per share) $ 1.21 $ 1.96      
Options Outstanding          
Beginning balance 68,133 190,933      
Granted 0 0      
Forfeited (1,000) (60,000)      
Exercised 56,800 62,800      
Ending balance 10,333 68,133      
Vested and Exercisable          
Beginning balance 68,133 190,933      
Granted 0 0      
Forfeited (1,000) (60,000)      
Exercised (56,800) (62,800)      
Ending balance 10,333 68,133      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]          
Granted (in dollars per share) $ 0.00 $ 0.00      
Stock options          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options authorized       400,000 500,000
Vesting period 3 years        
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period 3 years        
Weighted Average Exercise Price          
Granted (in dollars per share) $ 5.45 $ 4.95      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]          
Non-vested, beginning of period (shares) 103,000 0      
Granted (in shares) 72,000 103,000      
Vested (shares) 49,667 0      
Forfeited (shares) 0 0      
Non-vested, end of period (shares) 103,000 0 125,333    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]          
Non-vested, beginning of period (usd per share) $ 4.95 $ 0.00      
Granted (in dollars per share) 5.45 4.95      
Vested (in dollars per share) 0.05 0.00      
Forfeited (in dollars per share) 0.00 0.00      
Non-vested, ending of period (usd per share) $ 5.19 $ 4.95