XML 108 R94.htm IDEA: XBRL DOCUMENT v3.8.0.1
Small Business Lending Fund (Details Textual) - USD ($)
 12 Months Ended
Mar. 06, 2017
Jan. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2011
Class of Stock [Line Items]            
Preferred stock, shares issued     0 12,000    
Preferred stock, dividend rate (as a percent)     9.00%   1.00%  
Preferred stock dividends     $ 195,000 $ 1,022,000 $ 120,000  
Common stock, par value (in dollars per share)     $ 1 $ 1    
Proceeds from issuance of common stock     $ 37,852,113 $ 803,957    
Payments for redemption of preferred stock $ 12,000,000          
Payment of dividends on preferred stock $ 195,000   $ 195,000 $ 752,000    
SBLF Program [Member]            
Class of Stock [Line Items]            
Preferred stock, shares issued           12,000
Share price (in dollars per share)           $ 1,000
Common Stock [Member]            
Class of Stock [Line Items]            
Issuance of common stock in public offering (in shares)   2,010,084        
Common stock, par value (in dollars per share)   $ 1.00        
Proceeds from issuance of common stock   $ 33,200,000