Note 16 - Commitments, Guarantees and Other Contingencies (Details) - Contractual Amounts of the Company’s Unused Lending Commitments to Extend Credit (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013
Commitments to extend credit:
Contractual amounts of unused lending commitments	$ 167,850
Revolving Lines Secured By Single Family Residential Properties [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	58,171
Single Family Residential Construction Loan [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	7,512
Commercial Real Estate, Other Construction Loan, and Land Development Loan Commitments [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	30,812
Commercial And Industrial [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	34,248
Overdraft Protection Line [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	30,331
Other Loan [Member]
Commitments to extend credit:
Contractual amounts of unused lending commitments	$ 6,776