ALLOWANCE FOR LOAN LOSSES (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012
Allowance for Loan Losses [Roll Forward]
Balance at beginning of period	$ 61,328,777	$ 54,164,473	$ 54,507,299	$ 48,354,994
Provision for loan losses	37,394,633	36,109,128	93,411,187	89,005,511
Loan losses	(34,619,123)	(31,538,663)	(89,537,727)	(82,944,607)
Recoveries	2,750,869	2,462,103	8,472,307	7,210,318
Translation adjustment	(50,685)	(78,178)	(48,595)	(507,353)
Balance at end of period	66,804,471	61,118,863	66,804,471	61,118,863
Summary of loans individually and collectively evaluated for impairment [Abstract]
Bankruptcy, gross loans	6,045,303	5,850,341	6,045,303	5,850,341	5,646,956
91 days or more delinquent, excluding bankruptcy	25,205,444	22,784,021	25,205,444	22,784,021	20,882,907
Loans less than 91 days delinquent and not in bankruptcy	1,152,454,989	1,037,443,542	1,152,454,989	1,037,443,542	946,192,901
Gross loan balance	1,183,705,736	1,066,077,904	1,183,705,736	1,066,077,904	972,722,764
Unearned interest and fees	(324,730,655)	(287,848,599)	(324,730,655)	(287,848,599)	(257,637,819)
Net loans	858,975,081	778,229,305	858,975,081	778,229,305	715,084,945
Allowance for loan losses	(66,804,471)	(61,118,863)	(66,804,471)	(61,118,863)
Loans receivable, net	792,170,610	717,110,442	792,170,610	717,110,442	660,577,646
Loans individually evaluated for impairment (impaired loans) [Member]
Allowance for Loan Losses [Roll Forward]
Balance at beginning of period					19,444,641
Balance at end of period	24,803,243	22,979,102	24,803,243	22,979,102	19,444,641
Summary of loans individually and collectively evaluated for impairment [Abstract]
Bankruptcy, gross loans	6,045,303	5,850,341	6,045,303	5,850,341	5,646,956
91 days or more delinquent, excluding bankruptcy	25,205,444	22,784,021	25,205,444	22,784,021	20,882,907
Loans less than 91 days delinquent and not in bankruptcy	0	0	0	0	0
Gross loan balance	31,250,747	28,634,362	31,250,747	28,634,362	26,529,863
Unearned interest and fees	(6,447,504)	(5,655,260)	(6,447,504)	(5,655,260)	(7,085,222)
Net loans	24,803,243	22,979,102	24,803,243	22,979,102	19,444,641
Allowance for loan losses	(24,803,243)	(22,979,102)	(24,803,243)	(22,979,102)	(19,444,641)
Loans receivable, net	0	0	0	0	0
Loans collectively evaluated for impairment [Member]
Allowance for Loan Losses [Roll Forward]
Balance at beginning of period					35,062,658
Balance at end of period	42,001,228	38,139,761	42,001,228	38,139,761	35,062,658
Summary of loans individually and collectively evaluated for impairment [Abstract]
Bankruptcy, gross loans	0	0	0	0	0
91 days or more delinquent, excluding bankruptcy	0	0	0	0	0
Loans less than 91 days delinquent and not in bankruptcy	1,152,454,989	1,037,443,542	1,152,454,989	1,037,443,542	946,192,901
Gross loan balance	1,152,454,989	1,037,443,542	1,152,454,989	1,037,443,542	946,192,901
Unearned interest and fees	(318,283,151)	(282,193,339)	(318,283,151)	(282,193,339)	(250,552,597)
Net loans	834,171,838	755,250,203	834,171,838	755,250,203	695,640,304
Allowance for loan losses	(42,001,228)	(38,139,761)	(42,001,228)	(38,139,761)	(35,062,658)
Loans receivable, net	$ 792,170,610	$ 717,110,442	$ 792,170,610	$ 717,110,442	$ 660,577,646