Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net income	$ 10,822,897	$ 7,558,182
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	145,537	133,399
Gain on sale of property and equipment	(4,026)	(3,648)
Provision for credit losses	257,444	3,307,534
Deferred income taxes	(187,722)	(855,856)
Share-based compensation	234,911	309,140
Change in fair value of interest rate swaps	0	(382,193)
Changes in operating assets and liabilities:
Prepaid expenses and other assets	69,581	268,100
Accounts payable and accrued expenses	(440,898)	277,667
Income taxes receivable/payable	(893,251)	(300,664)
Deferred revenues	(37,061)	(657)
Net cash provided by operating activities	9,967,412	10,311,004
Cash flows from investing activities:
Purchase and origination of finance contracts	(65,826,689)	(66,741,246)
Principal payments received	58,800,575	46,358,898
Increase in assets held for resale	(417,842)	(275,751)
Purchase of property and equipment	(219,019)	(174,448)
Proceeds from sale of property and equipment	20,650	14,255
Net cash used in investing activities	(7,642,325)	(20,818,292)
Cash flows from financing activities:
Net (repayment) proceeds from line of credit	(1,000,000)	9,725,029
(Decrease) increase in drafts payable	(484,836)	151,580
Payment of cash dividend	(1,196,914)	0
Proceeds from exercise of stock options	699,159	49,390
Excess tax benefits from exercise of stock options and issuance of other share awards	359,657	56,060
Net cash (used) provided by financing activities	(1,622,934)	9,982,059
Net increase (decrease) in cash	702,153	(525,229)
Cash, beginning of period	2,017,540	1,533,894
Cash, end of period	$ 2,719,693	$ 1,008,665