Allowance for Credit Losses and Credit Quality Information (Payment Performance On A Recency Basis) (Details) - USD ($)	Mar. 31, 2021	Mar. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	$ 1,104,746,261	$ 1,209,871,366
Loans
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	1,041,554,654
Financing receivable, between 1 and 2 years ago	52,109,459
Financing receivable, between 2 and 3 years ago	2,527,702
Financing receivable, between 3 and 4 years ago	202,144
Financing receivable, between 4 and 5 years ago	33,223
Financing receivable, more than 5 years ago	3,068
Loans \| Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	1,096,430,250
Loans \| 30-60 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	21,862,634
Financing receivable, between 1 and 2 years ago	2,011,261
Financing receivable, between 2 and 3 years ago	153,417
Financing receivable, between 3 and 4 years ago	21,426
Financing receivable, between 4 and 5 years ago	3,500
Financing receivable, more than 5 years ago	2,069
Gross loans receivable	24,054,307
Loans \| 61-90 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	18,039,010
Financing receivable, between 1 and 2 years ago	1,208,936
Financing receivable, between 2 and 3 years ago	88,119
Financing receivable, between 3 and 4 years ago	11,800
Financing receivable, between 4 and 5 years ago	571
Financing receivable, more than 5 years ago	0
Gross loans receivable	19,348,436
Loans \| 91 days or more past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	31,126,328
Financing receivable, between 1 and 2 years ago	3,120,210
Financing receivable, between 2 and 3 years ago	183,434
Financing receivable, between 3 and 4 years ago	14,028
Financing receivable, between 4 and 5 years ago	14,708
Financing receivable, more than 5 years ago	168
Gross loans receivable	34,458,876
Tax Advance Loan
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	8,269,742
Financing receivable, between 1 and 2 years ago	45,292
Financing receivable, between 2 and 3 years ago	977
Financing receivable, between 3 and 4 years ago	0
Financing receivable, between 4 and 5 years ago	0
Financing receivable, more than 5 years ago	0
Gross loans receivable	8,316,011
Tax Advance Loan \| 30-60 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	686,667
Financing receivable, between 1 and 2 years ago	1,423
Financing receivable, between 2 and 3 years ago	0
Financing receivable, between 3 and 4 years ago	0
Financing receivable, between 4 and 5 years ago	0
Financing receivable, more than 5 years ago	0
Gross loans receivable	688,090
Tax Advance Loan \| 61-90 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	0
Financing receivable, between 1 and 2 years ago	0
Financing receivable, between 2 and 3 years ago	321
Financing receivable, between 3 and 4 years ago	0
Financing receivable, between 4 and 5 years ago	0
Financing receivable, more than 5 years ago	0
Gross loans receivable	321
Tax Advance Loan \| 91 days or more past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	0
Financing receivable, between 1 and 2 years ago	34,509
Financing receivable, between 2 and 3 years ago	656
Financing receivable, between 3 and 4 years ago	0
Financing receivable, between 4 and 5 years ago	0
Financing receivable, more than 5 years ago	0
Gross loans receivable	35,165
Performing Financing Receivables
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable		$ 1,104,130,714
Performing Financing Receivables \| Loans
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	970,526,682
Financing receivable, between 1 and 2 years ago	45,769,052
Financing receivable, between 2 and 3 years ago	2,102,732
Financing receivable, between 3 and 4 years ago	154,890
Financing receivable, between 4 and 5 years ago	14,444
Financing receivable, more than 5 years ago	831
Performing Financing Receivables \| Loans \| Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	1,018,568,631
Performing Financing Receivables \| Tax Advance Loan
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	7,583,075
Financing receivable, between 1 and 2 years ago	9,360
Financing receivable, between 2 and 3 years ago	0
Financing receivable, between 3 and 4 years ago	0
Financing receivable, between 4 and 5 years ago	0
Financing receivable, more than 5 years ago	0
Gross loans receivable	$ 7,592,435

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