CONSOLIDATED STATEMENTS OF CASH FLOWS	12 Months Ended
	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations		$ 32,086,304	$ 15,200,410
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	$ 9,335,433	12,473,833	11,581,936
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents	0	19,612,471	3,618,474
Cash flow from operating activities:
Net income	37,235,134	53,690,018	73,600,294
Gain (Loss) on Disposition of Business	38,377,623	0	0
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of intangible assets	1,527,656	990,399	489,836
Amortization of loan costs and discounts	592,549	865,727	2,029,719
Provision for loan losses	148,426,578	117,620,140	119,095,712
Depreciation	6,608,348	7,339,657	6,918,525
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	(93,199)	210,117	(29,583)
Deferred income tax benefit	(3,655,751)	8,785,432	(894,086)
Compensation related to stock option and restricted stock plans	17,635,309	5,434,619	4,810,698
Change in accounts:
Other assets, net	5,507,068	(858,817)	492,233
Income taxes payable	(2,547,222)	2,015,553	4,277,275
Accounts payable and accrued expenses	5,877,916	8,574,634	(904,326)
Net cash provided by operating activities	244,664,271	218,026,468	219,362,747
Cash flows from investing activities:
Increase in loans receivable, net	(190,976,279)	(143,373,549)	(104,765,019)
Net assets acquired from office acquisitions, primarily loans	(33,922,279)	(15,586,411)	(16,703,456)
Increase in intangible assets from acquisitions	(10,223,508)	(1,987,762)	(4,133,242)
Purchases of property and equipment, net	(9,805,084)	(9,171,468)	(6,813,582)
Proceeds from Sale of Property, Plant, and Equipment	466,806	310,542	801,797
Proceeds from Divestiture of Businesses	37,494,505	0	0
Net cash used in investing activities	(206,965,839)	(169,808,648)	(131,613,502)
Cash flow from financing activities:
Borrowings from lines of credit	364,290,000	294,963,800	274,901,200
Payments on lines of credit	(357,250,000)	(345,200,000)	(354,450,000)
Payments of Loan Costs	240,000	420,000	201,200
Proceeds from exercise of stock options	5,997,948	25,323,531	1,160,505
Payments Related to Tax Withholding for Share-based Compensation	(1,394,835)	(1,517,357)	0
Repurchase of common stock	(74,519,863)	(4,614,331)	(4,995,809)
Excess tax benefits from exercise of stock options	0	0	(565,162)
Net cash used in financing activities	(63,116,750)	(31,464,357)	(84,150,466)
(Decrease) increase in cash and cash equivalents	(22,750,871)	16,885,894	2,823,386
Effects of foreign currency fluctuations on cash	2,667,447	132,431	(775,393)
Cash and cash equivalents at beginning of period	12,473,833	11,581,936	8,095,263
Cash and cash equivalents at end of period	9,335,433	12,473,833	11,581,936
Interest Paid, Including Capitalized Interest, Operating and Investing Activities	16,835,789	17,696,711	19,251,788
Income Taxes Paid	$ 23,259,590	38,741,119	38,042,020
Parent Company [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses		$ 130,979,129	$ 128,572,162