Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities
Net income	$ 5,373,525	$ 5,302,793
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	72,467	72,541
Gain on sale of property and equipment		(2,526)
Provision for credit losses	10,372	79,415
Deferred income taxes	(274,741)	(173,267)
Share-based compensation	281,707	57,765
Change in fair value of interest rate swaps	209,101
Changes in operating assets and liabilities:
Prepaid expenses and other assets	(2,957)	(185,910)
Accounts payable and accrued expenses	(348,076)	(363,634)
Income taxes receivable/payable	3,598,939	2,876,139
Deferred revenues	18,692	(35,450)
Net cash provided by operating activities	8,939,029	7,627,866
Cash flows from investing activities
Purchase and origination of finance contracts	(34,792,569)	(33,436,582)
Principal payments received	32,533,699	28,833,502
Increase in assets held for resale	(109,500)	(354,147)
Purchase of property and equipment	(86,466)	(138,131)
Proceeds from sale of property and equipment		19,150
Net cash used in investing activities	(2,454,836)	(5,076,208)
Cash flows from financing activities
Net repayment from line of credit	(3,000,000)	(2,000,000)
Decrease in drafts payable	(112,270)	(332,644)
Payment of cash dividends	(1,208,328)
Proceeds from exercise of stock options	51,210	529,826
Excess tax benefits from exercise of stock options and vesting of other share awards	31,525	222,460
Net cash used by financing activities	(4,237,863)	(1,580,358)
Net increase in cash	2,246,330	971,300
Cash, beginning of period	2,803,054	2,017,540
Cash, end of period	$ 5,049,384	$ 2,988,840