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Benefit Plans and Capital Transactions (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jan. 09, 2020
Oct. 15, 2019
Oct. 07, 2019
Aug. 01, 2019
Mar. 15, 2018
Feb. 28, 2020
Jan. 31, 2020
Oct. 30, 2018
Dec. 31, 2019
Dec. 31, 2018
Mar. 05, 2019
Repurchased value of commons stock                 $ 4,272 $ 1,365  
Dividend payable (in dollars per share)                   $ 0.08  
Dividends paid in cash                 41,138 $ 22,684  
Preferred Stock, Liquidation preference                 58,723    
Dividends in arrears                 673    
Description of preferred stock     The Company issued 2,000 shares of Series A Preferred Stock represented by 2,000,000 Depositary Shares issued. On October 11, 2019, the Company completed the sale of an additional 300,000 Depositary Shares, pursuant to the underwriters' full exercise of their over-allotment option to purchase additional Depositary Shares. The offering of the 2,300,000 Depository Shares generated $57,500 of gross proceeds.                
Maximum [Member]                      
Dividend payable (in dollars per share)     $ 0.175                
Minimum [Member]                      
Dividend payable (in dollars per share)     $ 0.08                
Board of Directors [Member]                      
Number of common shares issued         950,000            
Stock price (in dollars per share)         $ 18.25            
Purchase of common stock         $ 17,337            
Repurchased value of commons stock               $ 50,000      
Expired or retired date         Apr. 02, 2018     Oct. 31, 2019      
Dividend paid date   Oct. 31, 2019                  
Dividend record date   Oct. 21, 2019                  
Dividend payable (in dollars per share)   $ 0.11458333   $ 1.71875              
Dividend declared date   Oct. 15, 2019                  
Cumulative Cash Dividends       6.875%              
Preferred Stock, Liquidation preference       $ 25,000              
Depositary Share Price       $ 25.00              
Subsequent Event [Member]                      
Stock price (in dollars per share)           $ 24.4725 $ 24.4725        
Purchase of common stock           $ 21,536 $ 21,536        
Repurchase shares of commons stock           880,000 880,000        
Dividend paid date Jan. 31, 2020                    
Dividend record date Jan. 21, 2020                    
Dividend payable (in dollars per share) $ 0.4296875                    
Dividend [Member]                      
Dividend payable (in dollars per share)                     $ 0.08
Employee Benefit Plan [Member]                      
Amount of employer contributions                 $ 1,424 $ 1,248