Allowance for Credit Losses and Credit Quality Information (Summary of Past Due Receivables) (Details) - USD ($)	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 1,277,149,256	$ 1,390,015,568
Unearned interest, insurance and fees	(5,000,000)	(4,900,000)
Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	12,389,008	2,562,054
30 - 60 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	73,699,568	81,803,668
30 - 60 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	69,616,739	133,650,188
30 - 60 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	140,340,728	135,396,187
30 - 60 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	181,399,293	244,414,255
30 - 60 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	799,703,920	792,189,216
Recency Basis
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,277,149,256	1,390,015,568
Unearned interest, insurance and fees	(326,746,136)	(376,674,349)
Total net loans	$ 950,403,120	$ 1,013,341,219
Percentage of period-end gross loans receivable	8.50%	8.90%
Recency Basis | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 12,389,008	$ 2,562,054
Recency Basis | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	73,699,568	81,803,668
Recency Basis | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	69,616,739	133,650,188
Recency Basis | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	140,340,728	135,396,187
Recency Basis | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	181,399,293	244,414,255
Recency Basis | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	799,703,920	792,189,216
Recency Basis | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,169,137,031	1,266,693,664
Unearned interest, insurance and fees	(301,616,958)	(343,255,876)
Total net loans	867,520,073	923,437,788
Recency Basis | Current | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	7,442,520	1,936,131
Recency Basis | Current | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	56,802,703	64,615,314
Recency Basis | Current | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	60,634,735	113,946,833
Recency Basis | Current | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	126,843,010	120,125,821
Recency Basis | Current | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	165,694,013	223,734,062
Recency Basis | Current | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	751,720,050	742,335,503
Recency Basis | 30 - 60 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	44,219,708	46,307,341
Unearned interest, insurance and fees	(7,677,494)	(12,548,627)
Total net loans	$ 36,542,214	$ 33,758,714
Percentage of period-end gross loans receivable	3.50%	3.30%
Recency Basis | 30 - 60 days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 4,943,545	$ 610,580
Recency Basis | 30 - 60 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,720,150	5,451,276
Recency Basis | 30 - 60 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	3,155,423	6,527,355
Recency Basis | 30 - 60 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,057,256	5,336,994
Recency Basis | 30 - 60 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	6,159,335	8,070,011
Recency Basis | 30 - 60 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	20,183,999	20,311,125
Recency Basis | 61 - 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	24,248,726	29,030,081
Unearned interest, insurance and fees	(6,674,554)	(7,866,737)
Total net loans	$ 17,574,172	$ 21,163,344
Percentage of period-end gross loans receivable	1.90%	2.10%
Recency Basis | 61 - 90 days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 1,650	$ 4,845
Recency Basis | 61 - 90 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,496,518	4,407,751
Recency Basis | 61 - 90 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	2,075,608	4,655,441
Recency Basis | 61 - 90 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	3,224,662	3,727,331
Recency Basis | 61 - 90 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	3,519,743	4,839,000
Recency Basis | 61 - 90 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	10,930,545	11,395,713
Recency Basis | 91 or more days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	39,543,791	47,984,482
Unearned interest, insurance and fees	(10,777,130)	(13,003,109)
Total net loans	$ 28,766,661	$ 34,981,373
Percentage of period-end gross loans receivable	3.10%	3.50%
Recency Basis | 91 or more days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 1,293	$ 10,498
Recency Basis | 91 or more days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	7,680,197	7,329,327
Recency Basis | 91 or more days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	3,750,973	8,520,559
Recency Basis | 91 or more days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,215,800	6,206,041
Recency Basis | 91 or more days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	6,026,202	7,771,182
Recency Basis | 91 or more days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	16,869,326	18,146,875
Recency Basis | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	108,012,225	123,321,904
Unearned interest, insurance and fees	(25,129,178)	(33,418,473)
Total net loans	82,883,047	89,903,431
Recency Basis | Total Past Due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,946,488	625,923
Recency Basis | Total Past Due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	16,896,865	17,188,354
Recency Basis | Total Past Due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	8,982,004	19,703,355
Recency Basis | Total Past Due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	13,497,718	15,270,366
Recency Basis | Total Past Due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	15,705,280	20,680,193
Recency Basis | Total Past Due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	47,983,870	49,853,713
Contractual basis
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,277,149,256	1,390,015,568
Unearned interest, insurance and fees	(326,746,136)	(376,674,349)
Total net loans	$ 950,403,120	$ 1,013,341,219
Percentage of period-end gross loans receivable	10.30%	11.40%
Contractual basis | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 12,389,008	$ 2,562,054
Contractual basis | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	73,699,568	81,803,668
Contractual basis | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	69,616,739	133,650,188
Contractual basis | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	140,340,728	135,396,187
Contractual basis | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	181,399,293	244,414,255
Contractual basis | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	799,703,920	792,189,216
Contractual basis | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,145,665,740	1,231,447,389
Unearned interest, insurance and fees	(296,584,056)	(333,704,639)
Total net loans	849,081,684	897,742,750
Contractual basis | Current | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	7,441,661	1,932,607
Contractual basis | Current | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	55,572,691	61,850,142
Contractual basis | Current | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	58,920,283	109,694,389
Contractual basis | Current | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	123,878,546	115,711,782
Contractual basis | Current | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	161,614,270	217,821,239
Contractual basis | Current | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	738,238,289	724,437,230
Contractual basis | 30 - 60 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	46,096,561	51,702,239
Unearned interest, insurance and fees	(7,544,366)	(14,010,568)
Total net loans	$ 38,552,195	$ 37,691,671
Percentage of period-end gross loans receivable	3.60%	3.70%
Contractual basis | 30 - 60 days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 4,942,757	$ 609,844
Contractual basis | 30 - 60 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,645,860	5,320,659
Contractual basis | 30 - 60 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	2,990,455	6,892,610
Contractual basis | 30 - 60 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,246,778	5,721,694
Contractual basis | 30 - 60 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	6,388,791	8,991,995
Contractual basis | 30 - 60 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	21,881,920	24,165,437
Contractual basis | 61 - 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	29,306,328	36,094,628
Unearned interest, insurance and fees	(7,936,622)	(9,781,128)
Total net loans	$ 21,369,706	$ 26,313,500
Percentage of period-end gross loans receivable	2.30%	2.60%
Contractual basis | 61 - 90 days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 0	$ 0
Contractual basis | 61 - 90 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,784,273	4,864,498
Contractual basis | 61 - 90 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	2,364,202	5,613,468
Contractual basis | 61 - 90 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	3,813,284	4,499,010
Contractual basis | 61 - 90 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,435,367	6,078,488
Contractual basis | 61 - 90 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	13,909,202	15,039,164
Contractual basis | 91 or more days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	56,080,627	70,771,312
Unearned interest, insurance and fees	(14,681,092)	(19,178,014)
Total net loans	$ 41,399,535	$ 51,593,298
Percentage of period-end gross loans receivable	4.40%	5.10%
Contractual basis | 91 or more days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 4,590	$ 19,603
Contractual basis | 91 or more days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	8,696,744	9,768,369
Contractual basis | 91 or more days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,341,799	11,449,721
Contractual basis | 91 or more days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	7,402,120	9,463,701
Contractual basis | 91 or more days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	8,960,865	11,522,533
Contractual basis | 91 or more days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	25,674,509	28,547,385
Contractual basis | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	131,483,516	158,568,179
Unearned interest, insurance and fees	(30,162,080)	(42,969,710)
Total net loans	101,321,436	115,598,469
Contractual basis | Total Past Due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,947,347	629,447
Contractual basis | Total Past Due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	18,126,877	19,953,526
Contractual basis | Total Past Due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	10,696,456	23,955,799
Contractual basis | Total Past Due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	16,462,182	19,684,405
Contractual basis | Total Past Due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	19,785,023	26,593,016
Contractual basis | Total Past Due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 61,465,631	$ 67,751,986