ALLOWANCE FOR LOAN LOSSES Financing Receivables (Details) - USD ($)	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	$ 1,274,146,794	$ 1,127,957,383	$ 1,126,792,196
Small loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	839,609,690	736,643,663	762,471,067
Large loans [Member] [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	433,389,225	383,686,372	363,884,295
Sales finance loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Gross	$ 1,147,879	$ 7,627,348	$ 436,834