RECEIVABLES AND ALLOWANCE FOR LOAN LOSSES (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment			$ 48,500,000	$ 41,800,000
Allowance for Loan Losses [Roll Forward]
Balance at beginning of period	$ 86,730,801	$ 76,421,311	72,194,892	69,565,804
Provision for loan losses	43,754,905	39,984,838	113,570,935	107,869,859
Loan losses	(36,323,744)	(37,707,592)	(99,787,954)	(105,126,567)
Recoveries	3,438,705	3,674,873	11,336,616	11,141,171
Translation adjustment	(1,127,037)	(570,110)	(840,859)	(1,646,947)
Balance at end of period	96,473,630	81,803,320	96,473,630	81,803,320
Summary of loans individually and collectively evaluated for impairment [Abstract]
Bankruptcy, gross loans					$ 4,507,308	$ 4,903,728	$ 4,679,222
91 days or more delinquent, excluding bankruptcy					70,971,901	54,310,791	58,478,910
Loans less than 91 days delinquent and not in bankruptcy					1,153,825,153	1,000,589,613	1,101,850,883
Loans and Leases Receivable, Gross					1,229,304,362	1,059,804,132	1,165,009,015
Unearned interest and fees					(341,926,224)	(291,908,651)	(327,308,054)
Net loans					887,378,138	767,895,481	837,700,961
Allowance for loan losses	(86,730,801)	(76,421,311)	(72,194,892)	(69,565,804)	(96,473,630)	(72,194,892)	(81,803,320)
Loans receivable, net					790,904,508	695,700,589	755,897,641
Loans individually evaluated for impairment (impaired loans) [Member]
Allowance for Loan Losses [Roll Forward]
Balance at beginning of period			39,182,951
Balance at end of period	51,152,146	42,594,801	51,152,146	42,594,801
Summary of loans individually and collectively evaluated for impairment [Abstract]
Bankruptcy, gross loans					4,507,308	4,903,728	4,679,222
91 days or more delinquent, excluding bankruptcy					70,971,901	54,310,791	58,478,910
Loans less than 91 days delinquent and not in bankruptcy					0	0	0
Loans and Leases Receivable, Gross					75,479,209	59,214,519	63,158,132
Unearned interest and fees					(20,011,316)	(15,336,248)	(16,082,976)
Net loans					55,467,893	43,878,271	47,075,156
Allowance for loan losses	(51,152,146)	(42,594,801)	(39,182,951)	(42,594,801)	(51,152,146)	(39,182,951)	(42,594,801)
Loans receivable, net					4,315,747	4,695,320	4,480,355
Loans collectively evaluated for impairment [Member]
Allowance for Loan Losses [Roll Forward]
Balance at beginning of period			33,011,941
Balance at end of period	45,321,484	39,208,519	45,321,484	39,208,519
Summary of loans individually and collectively evaluated for impairment [Abstract]
Bankruptcy, gross loans					0	0	0
91 days or more delinquent, excluding bankruptcy					0	0	0
Loans less than 91 days delinquent and not in bankruptcy					1,153,825,153	1,000,589,613	1,101,850,883
Loans and Leases Receivable, Gross					1,153,825,153	1,000,589,613	1,101,850,883
Unearned interest and fees					(321,914,908)	(276,572,403)	(311,225,078)
Net loans					831,910,245	724,017,210	790,625,805
Allowance for loan losses	$ (45,321,484)	$ (39,208,519)	$ (33,011,941)	$ (39,208,519)	(45,321,484)	(33,011,941)	(39,208,519)
Loans receivable, net					$ 786,588,761	$ 691,005,269	$ 751,417,286