7. Carrying Amounts and Fair Value of Financial Instruments (Details) (USD $)	6 Months Ended		12 Months Ended
	Sep. 30, 2012	Mar. 31, 2012	Mar. 31, 2012
Impaired Financing Receivable, Recorded Investment	$ 43,152,281	$ 40,797,186	$ 40,797,186
Impaired Financing Receivable, Average Recorded Investment	42,193,362	34,287,940	34,300,000
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Liabilities, Fair Value Disclosure, Nonrecurring	0	0	0
Fair Value Disclosure, Off-balance Sheet Risks, Amount, Liability	$ 32,500,000