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Summary of Significant Accounting Policies (Narrative) (Details)
3 Months Ended 9 Months Ended
Mar. 28, 2017
USD ($)
Mar. 17, 2017
USD ($)
shares
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
USD ($)
segment
Sep. 30, 2017
USD ($)
Jun. 30, 2018
item
Mar. 24, 2017
shares
Summary Of Significant Accounting Policies [Line Items]                
Number of subsidiaries | item             2  
Impairment         $ 0 $ 0    
Federal tax rate         21.00% 34.00%    
Employee stock ownership plan, shares | shares               350,000
Underwriting fees paid $ 1,000,000              
Net proceeds received from issuance of shares of common stock $ 28,700,000         $ 28,981,491    
Operating segments | segment         1      
Illinois [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Concentration risk     28.00% 31.30% 29.90% 34.50%    
Surplus Notes [Member]                
Summary Of Significant Accounting Policies [Line Items]                
Notes converted   $ 1,650,000            
Debt converted, shares issued | shares   165,000