Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Troubled Debt Restructurings by Class (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commercial Real Estate
Number of contracts	1	2	2	4
Pre-modification outstanding principal balance	$ 2,484	$ 474	$ 2,668	$ 4,128
Post-modification outstanding principal balance	2,484	483	2,693	4,222
Multifamily Real Estate [Member] | Commercial Real Estate Loans [Member]
Commercial Real Estate
Number of contracts	1		1
Pre-modification outstanding principal balance	2,484		2,484
Post-modification outstanding principal balance	2,484		2,484
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member]
Commercial Real Estate
Number of contracts			1	1
Pre-modification outstanding principal balance			184	154
Post-modification outstanding principal balance			209	239
Residential Closed End First Liens [Member] | Consumer Real Estate Loans [Member]
Commercial Real Estate
Number of contracts		1		1
Pre-modification outstanding principal balance		212		212
Post-modification outstanding principal balance		216		216
Residential Closed End Junior Liens [Member] | Consumer Real Estate Loans [Member]
Commercial Real Estate
Number of contracts		1		1
Pre-modification outstanding principal balance		262		262
Post-modification outstanding principal balance		267		267
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member]
Commercial Real Estate
Number of contracts				1
Pre-modification outstanding principal balance				3,500
Post-modification outstanding principal balance				$ 3,500