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ALLOWANCE FOR LOAN LOSSES (Summary of Past Due Receivables) (Details) - USD ($)
Dec. 31, 2019
Sep. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Mar. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Loans and Leases Receivable, Allowance $ (113,069,641) $ (101,469,313) $ (81,519,624) $ (91,305,834) $ (79,310,375) $ (66,088,139)
Financing Receivable, Bankruptcy 5,066,019   4,644,203 4,714,475    
Financing Receivable, Recorded Investment, Past Due $ 149,950,840   $ 101,157,090 $ 123,759,373    
Financing Receivable, Percent Past Due 10.90%   9.00% 9.80%    
Financing Receivables, Delinquent, excluding bankruptcy $ 80,765,569   $ 59,633,541 $ 62,834,979    
Financing Receivables Less Than Ninety One Days Delinquent Excluding Bankruptcy 1,286,936,992   1,063,679,639 1,191,358,451    
Loans and Leases Receivable, Gross 1,372,768,580   1,127,957,383 1,258,907,905    
Financing Receivable Individually Evaluated for Impairment Unearned Interest and Fees 366,034,067   290,813,752 338,132,479    
Loans and Leases Receivable, Net of Deferred Income 1,006,734,513   837,143,631 920,775,426    
Loans and Leases Receivable, Net Amount 893,664,872   755,624,007 829,469,592    
Financing Receivables, 30 to 59 Days Past Due [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Recorded Investment, Past Due 54,090,162   35,992,122 48,699,068    
Financing Receivables, 60 to 89 Days Past Due [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Recorded Investment, Past Due 33,295,364   22,393,106 28,067,650    
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Recorded Investment, Past Due 62,565,314   42,771,862 46,992,655    
Contractual basis [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Recorded Investment, Past Due $ 172,469,716   $ 128,483,509 $ 144,103,594    
Financing Receivable, Percent Past Due       11.40%    
Contractual basis [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Percent Past Due 12.60%   11.40%      
Contractual basis [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Recorded Investment, Past Due $ 55,172,208   $ 40,300,574 $ 49,655,289    
Contractual basis [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Recorded Investment, Past Due 36,531,939   28,549,394 31,613,326    
Contractual basis [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]            
Financing Receivable, Recorded Investment, Past Due [Line Items]            
Financing Receivable, Recorded Investment, Past Due $ 80,765,569   $ 59,633,541 $ 62,834,979