CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flow from operating activities:
Net income	$ 28,210,920	$ 28,908,269
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on assets held for sale	38,633	0
Amortization of intangible assets	2,460,329	2,668,246
Amortization of investment in historic tax credits	1,955,692	868,192
Amortization of debt issuance costs	301,996	315,015
Provision for credit losses	72,309,337	51,751,027
Depreciation	3,355,606	3,477,512
Loss on sale of property and equipment	337,181	34,058
Deferred income tax expense (benefit)	(9,255,272)	1,218,798
Compensation related to stock option and restricted stock plans, net of taxes and adjustments	8,449,138	9,610,243
Change in accounts:
Other assets, net	(5,887,792)	1,984,942
Income taxes payable	(3,317,691)	(242,285)
Accounts payable and accrued expenses	11,632,237	(20,387,516)
Net cash provided by operating activities	110,590,314	80,206,501
Cash flows from investing activities:
Increase in loans receivable, net	(239,168,631)
Increase in loans receivable, net		19,745,335
Net assets acquired from acquisitions, primarily loans	(9,631,112)	(5,786,847)
Increase in intangible assets from acquisitions	(1,228,872)	(1,150,091)
Purchases of property and equipment	(3,382,481)	(4,760,009)
Proceeds from sale of assets held for sale	1,104,895	0
Proceeds from sale of property and equipment	153,100	2,947,225
Net cash provided by (used in) investing activities	(252,153,101)	10,995,613
Cash flow from financing activities:
Borrowings from senior notes payable	239,248,253	144,676,750
Payments on senior notes payable	(368,550,000)	(170,876,750)
Issuance of senior unsecured notes payable	300,000,000	0
Debt issuance costs associated with senior unsecured notes payable	(5,113,826)	0
Debt issuance costs associated with senior notes payable	0	(376,750)
Proceeds from exercise of stock options	8,682,578	1,006,825
Payments for taxes related to net share settlement of equity awards	(150,213)	(284,079)
Repayment of finance lease	(301,721)	(292,201)
Repurchase of common stock	(31,112,523)	(62,686,925)
Net cash provided by (used in) financing activities	142,702,548	(88,833,130)
Net change in cash and cash equivalents	1,139,761	2,368,984
Cash and cash equivalents at beginning of period	15,746,454	11,618,922
Cash and cash equivalents at end of period	16,886,215	13,987,906
Supplemental Disclosures:
Interest paid during the period	11,251,918	11,283,327
Income taxes paid during the period	$ 19,204,025	$ 8,731,860