Note 6 - Past Due Loans, Allowance For Credit Losses, and Impaired Loans (Detail) - TDRs That Defaulted Within Twelve Months of the Restructured Date (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Number of loans	5	3
Recorded investment (in Dollars)	$ 1,616	$ 621
Office Retail And Industrial [Member]
Number of loans	2	1
Recorded investment (in Dollars)	837	397
Other Commercial Real Estate [Member]
Number of loans	2
Recorded investment (in Dollars)	717
Home Equity1 [Member]
Number of loans		1
Recorded investment (in Dollars)		83
1-4 Family Mortgages [Member]
Number of loans	1	1
Recorded investment (in Dollars)	$ 62	$ 141