Note 9 - Loans (Detail) - Charge-Offs (USD $)	6 Months Ended
	Sep. 30, 2012	Mar. 31, 2012
Balance at beginning of period	$ 1,038,078	$ 1,160,535
Provision:
Provision	1,602,000
Charge-Offs:
Charge-Offs	330,000
Recoveries	(26,000)
Period-end loans outstanding	100,674,000
Average loans outstanding	102,606,000
Allowance as a percentage of period-end loans	1.15%
Net charge-offs as a percentage of average loans	1.68%
Provision [Member]
Balance at beginning of period	1,286,000
Commercial Loans [Member]
Provision:
Provision	(4,000)
Commercial Real Estate Other Receivable [Member]
Provision:
Provision	643,000
Residential (One to Four Family) Real Estate [Member]
Provision:
Provision	581,000
Charge-Offs:
Charge-Offs	536,000
Consumer [Member]
Provision:
Provision	382,000
Charge-Offs:
Charge-Offs	401,000
Total Commercial [Member]
Charge-Offs:
Charge-Offs	816,000
Net [Member]
Charge-Offs:
Charge-Offs	1,727,000
End of Period [Member]
Balance at beginning of period	1,038,000	1,160,000
Charge-Offs:
Balance at end of period	$ 1,161,000