Allowance for Credit Losses and Credit Quality Information (Summary of Past Due Receivables) (Details) - USD ($)	Mar. 31, 2023	Mar. 31, 2022
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 1,390,015,568	$ 1,522,788,860
Unearned interest, insurance and fees	(4,900,000)	(6,900,000)
Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	2,562,054	5,823,320
30 - 60 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	81,803,668	198,740,475
30 - 60 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	133,650,188	133,665,566
30 - 60 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	135,396,187	204,940,323
30 - 60 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	244,414,255	214,956,857
30 - 60 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	792,189,216	764,662,319
Recency Basis
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,390,015,568	1,522,788,860
Unearned interest, insurance and fees	(376,674,349)	(403,030,844)
Total net loans	$ 1,013,341,219	$ 1,119,758,016
Financing receivable, percent past due	8.90%	10.40%
Recency Basis | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 2,562,054	$ 5,823,320
Recency Basis | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	81,803,669	198,740,475
Recency Basis | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	133,650,188	133,665,566
Recency Basis | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	135,396,186	204,940,323
Recency Basis | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	237,962,419	208,936,027
Recency Basis | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	798,641,052	770,683,149
Recency Basis | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,266,693,664	1,364,192,803
Unearned interest, insurance and fees	(343,255,876)	(361,055,818)
Total net loans	923,437,788	1,003,136,985
Recency Basis | Current | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,936,131	4,744,774
Recency Basis | Current | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	64,615,315	145,168,588
Recency Basis | Current | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	113,946,833	116,065,794
Recency Basis | Current | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	120,125,820	183,697,553
Recency Basis | Current | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	217,851,608	193,820,229
Recency Basis | Current | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	748,217,957	720,695,865
Recency Basis | 30 - 60 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	46,307,341	52,972,433
Unearned interest, insurance and fees	(12,548,627)	(14,020,016)
Total net loans	$ 33,758,714	$ 38,952,417
Financing receivable, percent past due	3.30%	3.50%
Recency Basis | 30 - 60 days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 610,580	$ 1,062,145
Recency Basis | 30 - 60 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,451,276	13,450,365
Recency Basis | 30 - 60 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	6,527,355	5,548,699
Recency Basis | 30 - 60 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,336,994	7,220,814
Recency Basis | 30 - 60 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	7,871,872	5,951,049
Recency Basis | 30 - 60 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	20,509,264	19,739,361
Recency Basis | 61 - 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	29,030,081	37,846,916
Unearned interest, insurance and fees	(7,866,737)	(10,016,802)
Total net loans	$ 21,163,344	$ 27,830,114
Financing receivable, percent past due	2.10%	2.50%
Recency Basis | 61 - 90 days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 4,845	$ 432
Recency Basis | 61 - 90 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,407,751	14,196,717
Recency Basis | 61 - 90 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,655,441	4,148,743
Recency Basis | 61 - 90 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	3,727,331	4,903,686
Recency Basis | 61 - 90 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,713,501	3,452,087
Recency Basis | 61 - 90 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	11,521,212	11,145,251
Recency Basis | 91 or more days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	47,984,482	67,776,708
Unearned interest, insurance and fees	(13,003,109)	(17,938,208)
Total net loans	$ 34,981,373	$ 49,838,500
Financing receivable, percent past due	3.50%	4.50%
Recency Basis | 91 or more days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 10,498	$ 15,969
Recency Basis | 91 or more days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	7,329,327	25,924,805
Recency Basis | 91 or more days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	8,520,559	7,902,330
Recency Basis | 91 or more days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	6,206,041	9,118,270
Recency Basis | 91 or more days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	7,525,438	5,712,662
Recency Basis | 91 or more days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	18,392,619	19,102,672
Recency Basis | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	123,321,904	158,596,057
Unearned interest, insurance and fees	(33,418,473)	(41,975,027)
Total net loans	89,903,431	116,621,030
Recency Basis | Total Past Due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	625,923	1,078,546
Recency Basis | Total Past Due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	17,188,354	53,571,887
Recency Basis | Total Past Due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	19,703,355	17,599,772
Recency Basis | Total Past Due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	15,270,366	21,242,770
Recency Basis | Total Past Due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	20,110,811	15,115,798
Recency Basis | Total Past Due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	50,423,095	49,987,284
Contractual basis
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,390,015,568	1,522,788,860
Unearned interest, insurance and fees	(376,674,349)	(403,030,844)
Total net loans	$ 1,013,341,219	$ 1,119,758,016
Financing receivable, percent past due	11.40%	12.80%
Contractual basis | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 2,562,054	$ 5,823,320
Contractual basis | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	81,803,670	198,740,475
Contractual basis | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	133,650,188	133,665,566
Contractual basis | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	135,396,186	204,940,323
Contractual basis | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	237,962,418	208,936,027
Contractual basis | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	798,641,052	770,683,149
Contractual basis | Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,231,447,389	1,327,173,697
Unearned interest, insurance and fees	(333,704,639)	(351,258,109)
Total net loans	897,742,750	975,915,588
Contractual basis | Current | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	1,932,607	4,737,742
Contractual basis | Current | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	61,850,144	140,570,461
Contractual basis | Current | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	109,694,389	112,465,841
Contractual basis | Current | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	115,711,781	177,565,328
Contractual basis | Current | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	212,104,582	188,849,569
Contractual basis | Current | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	730,153,886	702,984,756
Contractual basis | 30 - 60 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	51,702,239	59,891,713
Unearned interest, insurance and fees	(14,010,568)	(15,851,316)
Total net loans	$ 37,691,671	$ 44,040,397
Financing receivable, percent past due	3.70%	3.90%
Contractual basis | 30 - 60 days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 609,844	$ 1,060,329
Contractual basis | 30 - 60 days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,320,659	14,090,712
Contractual basis | 30 - 60 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	6,892,610	6,032,347
Contractual basis | 30 - 60 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,721,694	8,067,815
Contractual basis | 30 - 60 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	8,751,303	6,994,891
Contractual basis | 30 - 60 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	24,406,129	23,645,619
Contractual basis | 61 - 90 days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	36,094,628	46,645,203
Unearned interest, insurance and fees	(9,781,128)	(12,345,412)
Total net loans	$ 26,313,500	$ 34,299,791
Financing receivable, percent past due	2.60%	3.10%
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	4,864,498	15,380,836
Contractual basis | 61 - 90 days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,613,468	4,922,939
Contractual basis | 61 - 90 days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	4,499,010	6,273,351
Contractual basis | 61 - 90 days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	5,917,982	4,624,136
Contractual basis | 61 - 90 days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	15,199,670	15,443,941
Contractual basis | 91 or more days past due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	70,771,312	89,078,247
Unearned interest, insurance and fees	(19,178,014)	(23,576,007)
Total net loans	$ 51,593,298	$ 65,502,240
Financing receivable, percent past due	5.10%	5.80%
Contractual basis | 91 or more days past due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 19,603	$ 25,249
Contractual basis | 91 or more days past due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	9,768,369	28,698,466
Contractual basis | 91 or more days past due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	11,449,721	10,244,439
Contractual basis | 91 or more days past due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	9,463,701	13,033,829
Contractual basis | 91 or more days past due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	11,188,551	8,467,431
Contractual basis | 91 or more days past due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	28,881,367	28,608,833
Contractual basis | Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	158,568,179	195,615,163
Unearned interest, insurance and fees	(42,969,710)	(51,772,735)
Total net loans	115,598,469	143,842,428
Contractual basis | Total Past Due | Tax Advance Loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	629,447	1,085,578
Contractual basis | Total Past Due | 0 to 5 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	19,953,526	58,170,014
Contractual basis | Total Past Due | 6 to 17 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	23,955,799	21,199,725
Contractual basis | Total Past Due | 18 to 35 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	19,684,405	27,374,995
Contractual basis | Total Past Due | 36 to 59 months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	25,857,836	20,086,458
Contractual basis | Total Past Due | 60+ Months
Financing Receivable, Recorded Investment, Past Due [Line Items]
Finance receivables	$ 68,487,166	$ 67,698,393