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Stock Based Compensation (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation expense $ 141,000 $ 28,000 $ 207,000 $ 273,000
Stock-based compensation expense, tax benefit 22,000 $ 155,000 48,000 $ 183,000
Unrecognized compensation expense $ 1,363,000   $ 1,363,000  
2015 Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized under plan approved by directors (in shares) 273,829   273,829  
2015 Equity Incentive Plan [Member] | Performance Based Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock awards granted (in shares)     110,500  
Continued service period for awards to vest     3 years