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Shareholders' Equity (Details) - shares
9 Months Ended
Oct. 09, 2018
Dec. 12, 2017
Sep. 30, 2018
Sep. 30, 2017
May 15, 2018
Dec. 31, 2017
Class of Stock [Line Items]            
Common stock, shares authorized     30,000,000   30,000,000 15,000,000
Stock dividend additional shares issued   422,439        
Stock dividend rate   5.00% 5.00% 5.00%    
Stock dividend additional common stock shares issued     447,700 423,053    
Stock dividend declared date     Oct. 09, 2018      
Stock dividend payable date     Dec. 11, 2018      
Stock dividend record date     Oct. 23, 2018      
Subsequent Event [Member]            
Class of Stock [Line Items]            
Stock dividend rate 5.00%          
Stock dividend additional common stock shares issued 447,700