Note 17 - Commitments, Guarantees and Other Contingencies (Details) - Contractual Amounts of the Company’s Unused Lending Commitments to Extend Credit (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Commitments to extend credit:
Contractual amounts of unused lending commitments	$ 165,094
Revolving Lines Secured By Single Family Residential Properties [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	57,869
Single Family Residential Construction Loan [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	6,906
Commercial Real Estate, Other Construction Loan, and Land Development Loan Commitments [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	24,709
Commercial And Industrial [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	39,671
Overdraft Protection Line [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	29,125
Other Loan [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	$ 6,814