FINANCE RECEIVABLES AND ALLOWANCE FOR CREDIT LOSSES (Nonaccrual) (Details) - USD ($)	3 Months Ended	6 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Mar. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Uncollected accrued interest reversed	$ 6,800,000	$ 10,600,000
Financing receivable, nonaccrual	65,632,677	65,632,677	$ 61,718,299
Financing receivable, nonaccrual, no allowance	0	0
Interest Income Recognized		5,541,355
Nonaccrual status
Financing Receivable, Nonaccrual [Line Items]
Unearned interest, insurance and fees	(23,697,282)	(23,697,282)	(20,889,617)
61 - 90 days past due
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	0	0
Tax advance loans
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	654,037	654,037	46,269
Financing receivable, nonaccrual, no allowance	0	0
Interest Income Recognized		0
Tax advance loans | 61 - 90 days past due
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	0	0
0 to 5 months
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	20,180,823	20,180,823	17,256,243
Financing receivable, nonaccrual, no allowance	0	0
Interest Income Recognized		565,222
0 to 5 months | 61 - 90 days past due
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	0	0
6 to 17 months
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	13,153,496	13,153,496	13,153,363
Financing receivable, nonaccrual, no allowance	0	0
Interest Income Recognized		825,557
6 to 17 months | 61 - 90 days past due
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	0	0
18 to 35 months
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	15,190,793	15,190,793	12,048,132
Financing receivable, nonaccrual, no allowance	0	0
Interest Income Recognized		909,227
18 to 35 months | 61 - 90 days past due
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	0	0
36 to 59 months
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	8,807,368	8,807,368	8,156,159
Financing receivable, nonaccrual, no allowance	0	0
Interest Income Recognized		653,087
36 to 59 months | 61 - 90 days past due
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	0	0
60+ months
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	31,343,442	31,343,442	$ 31,947,750
Financing receivable, nonaccrual, no allowance	0	0
Interest Income Recognized		2,588,262
60+ months | 61 - 90 days past due
Financing Receivable, Nonaccrual [Line Items]
Financing receivable, nonaccrual	$ 0	$ 0