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Summary of Significant Accounting Policies (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
May 15, 2017
Jan. 06, 2017
Nov. 28, 2016
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
Dec. 16, 2016
Depreciation expense       $ 220,000 $ 187,000 $ 653,000 $ 577,000    
Stock-based compensation expense for the modifications           79,000      
Stock-based compensation expense       43,000 $ 42,000 317,000 $ 150,000    
Special dividend per share     $ 0.70            
Declared dividends       $ 0   0   $ 8,233,000 $ 8,233,000
Dividends paid $ 14,000 $ 8,163,000              
Omnibus Stock And Incentive Plan 2013 [Member]                  
Stock-based compensation expense for the modifications           $ 79,000      
Weighted average exercise price (in dollars per share)             $ 2.90    
Omnibus Stock And Incentive Plan 2013 [Member] | Restricted Stock [Member]                  
Restricted stock units (in shares)           60,000 100,000    
Weighted average exercise price (in dollars per share)           $ 1.09 $ 2.33    
Vesting period           2 years 5 years