Insurance Commissions and Other Income (Details) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Components of Other Income [Line Items]
Insurance commissions and other income	$ 78,222,382	$ 73,680,573	$ 66,850,858
Insurance commissions [Member]
Components of Other Income [Line Items]
Insurance commissions and other income	51,345,424	47,223,398	41,691,008
Tax return preparation revenue [Member]
Components of Other Income [Line Items]
Insurance commissions and other income	8,696,976	7,923,581	7,794,582
Auto club membership revenue [Member]
Components of Other Income [Line Items]
Insurance commissions and other income	5,493,653	5,624,142	5,011,758
World Class Buying Club revenue [Member]
Components of Other Income [Line Items]
Insurance commissions and other income	4,761,257	4,991,111	4,416,879
Other [Member]
Components of Other Income [Line Items]
Insurance commissions and other income	$ 7,925,072	$ 7,918,341	$ 7,936,631