Allowance for Credit Losses and Credit Quality Information (Payment Performance On A Contractual Basis) (Details) - USD ($)	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	$ 1,390,015,568	$ 1,522,788,860
Loans
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	1,309,447,905	1,472,796,581
Financing receivable, between 1 and 2 years ago	75,283,901	40,616,551
Financing receivable, between 2 and 3 years ago	2,411,623	3,291,728
Financing receivable, between 3 and 4 years ago	261,137	217,524
Financing receivable, between 4 and 5 years ago	36,864	35,183
Financing receivable, more than 5 years ago	12,084	7,973
Loans | Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	1,387,453,514	1,516,965,540
Loans | 30 - 60 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	40,791,746	49,517,859
Financing receivable, between 1 and 2 years ago	4,689,867	2,114,463
Financing receivable, between 2 and 3 years ago	160,956	247,291
Financing receivable, between 3 and 4 years ago	42,700	28,011
Financing receivable, between 4 and 5 years ago	8,504	2,664
Financing receivable, more than 5 years ago	2,988	0
Gross loans receivable	45,696,761	51,910,288
Loans | 61 - 90 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	26,319,250	36,707,960
Financing receivable, between 1 and 2 years ago	2,572,733	989,136
Financing receivable, between 2 and 3 years ago	92,088	130,763
Financing receivable, between 3 and 4 years ago	40,281	13,031
Financing receivable, between 4 and 5 years ago	884	5,594
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	29,025,236	37,846,484
Loans | 91 or more days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	41,832,821	64,238,626
Financing receivable, between 1 and 2 years ago	5,944,645	3,239,753
Financing receivable, between 2 and 3 years ago	160,361	248,596
Financing receivable, between 3 and 4 years ago	29,494	24,377
Financing receivable, between 4 and 5 years ago	4,430	5,386
Financing receivable, more than 5 years ago	2,233	4,001
Gross loans receivable	47,973,984	67,760,739
Tax Advance Loan
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	2,542,860	5,801,474
Financing receivable, between 1 and 2 years ago	19,194	21,846
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	2,562,054	5,823,320
Tax Advance Loan | 30 - 60 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	609,844	1,060,811
Financing receivable, between 1 and 2 years ago	736	1,334
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	610,580	1,062,145
Tax Advance Loan | 61 - 90 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	0	0
Financing receivable, between 1 and 2 years ago	4,845	432
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	4,845	432
Tax Advance Loan | 91 or more days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	409	2,922
Financing receivable, between 1 and 2 years ago	10,089	13,047
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	10,498	15,969
Performing Financing Receivables | Loans
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	1,200,504,088	1,322,332,136
Financing receivable, between 1 and 2 years ago	62,076,656	34,273,199
Financing receivable, between 2 and 3 years ago	1,998,218	2,665,078
Financing receivable, between 3 and 4 years ago	148,662	152,105
Financing receivable, between 4 and 5 years ago	23,046	21,539
Financing receivable, more than 5 years ago	6,863	3,972
Performing Financing Receivables | Loans | Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	1,264,757,533	1,359,448,029
Performing Financing Receivables | Tax Advance Loan
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	1,932,607	4,737,741
Financing receivable, between 1 and 2 years ago	3,524	7,033
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	1,936,131	4,744,774
Contractual basis
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	1,390,015,568	1,522,788,860
Contractual basis | 30 - 60 days past due
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	51,702,239	59,891,713
Contractual basis | 61 - 90 days past due
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	36,094,628	46,645,203
Contractual basis | 91 or more days past due
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	70,771,312	89,078,247
Contractual basis | Loans
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	1,309,447,906	1,472,796,581
Financing receivable, between 1 and 2 years ago	75,283,901	40,616,550
Financing receivable, between 2 and 3 years ago	2,411,623	3,291,728
Financing receivable, between 3 and 4 years ago	261,137	217,524
Financing receivable, between 4 and 5 years ago	36,863	35,184
Financing receivable, more than 5 years ago	12,084	7,973
Contractual basis | Loans | Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	1,387,453,514	1,516,965,540
Contractual basis | Loans | 30 - 60 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	47,346,331	57,225,953
Financing receivable, between 1 and 2 years ago	3,661,493	1,508,794
Financing receivable, between 2 and 3 years ago	77,857	91,118
Financing receivable, between 3 and 4 years ago	6,714	5,519
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	51,092,395	58,831,384
Contractual basis | Loans | 61 - 90 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	33,012,804	45,276,797
Financing receivable, between 1 and 2 years ago	3,030,052	1,271,187
Financing receivable, between 2 and 3 years ago	44,129	96,233
Financing receivable, between 3 and 4 years ago	7,643	986
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	36,094,628	46,645,203
Contractual basis | Loans | 91 or more days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	54,851,010	79,845,465
Financing receivable, between 1 and 2 years ago	14,940,345	7,922,574
Financing receivable, between 2 and 3 years ago	735,493	1,109,903
Financing receivable, between 3 and 4 years ago	182,547	142,183
Financing receivable, between 4 and 5 years ago	31,721	25,598
Financing receivable, more than 5 years ago	10,593	7,274
Gross loans receivable	70,751,709	89,052,997
Contractual basis | Tax Advance Loan
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	2,542,860	5,801,474
Financing receivable, between 1 and 2 years ago	19,194	21,846
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	2,562,054	5,823,320
Contractual basis | Tax Advance Loan | 30 - 60 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	609,844	1,060,329
Financing receivable, between 1 and 2 years ago	0	0
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	609,844	1,060,329
Contractual basis | Tax Advance Loan | 61 - 90 days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	0	0
Financing receivable, between 1 and 2 years ago	0	0
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	0	0
Contractual basis | Tax Advance Loan | 91 or more days past due
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	409	3,404
Financing receivable, between 1 and 2 years ago	19,194	21,846
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	19,603	25,250
Contractual basis | Performing Financing Receivables | Loans
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	1,174,237,761	1,290,448,366
Financing receivable, between 1 and 2 years ago	53,652,011	29,913,995
Financing receivable, between 2 and 3 years ago	1,554,144	1,994,474
Financing receivable, between 3 and 4 years ago	64,233	68,836
Financing receivable, between 4 and 5 years ago	5,142	9,586
Financing receivable, more than 5 years ago	1,491	699
Contractual basis | Performing Financing Receivables | Loans | Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Gross loans receivable	1,229,514,782	1,322,435,956
Contractual basis | Performing Financing Receivables | Tax Advance Loan
Financing Receivable, Recorded Investment [Line Items]
Financing receivable, up to 1 year ago	1,932,607	4,737,741
Financing receivable, between 1 and 2 years ago	0	0
Financing receivable, between 2 and 3 years ago	0	0
Financing receivable, between 3 and 4 years ago	0	0
Financing receivable, between 4 and 5 years ago	0	0
Financing receivable, more than 5 years ago	0	0
Gross loans receivable	$ 1,932,607	$ 4,737,741