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		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Modifications [Line Items]
Number of contracts	0	2	2	6
Pre-modification outstanding principal balance		$ 273	$ 2,668	$ 4,401
Post-modification outstanding principal balance		354	2,693	4,576
Multifamily Real Estate [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts			1
Pre-modification outstanding principal balance			2,484
Post-modification outstanding principal balance			2,484
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
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]
Financing Receivable, Modifications [Line Items]
Number of contracts		1		2
Pre-modification outstanding principal balance		241		453
Post-modification outstanding principal balance		309		525
Commercial and Industrial [Member] | Commercial Non Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts		1		1
Pre-modification outstanding principal balance		32		32
Post-modification outstanding principal balance		45		45
Residential Closed End Junior Liens [Member] | Consumer Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts				1
Pre-modification outstanding principal balance				262
Post-modification outstanding principal balance				267
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts				1
Pre-modification outstanding principal balance				3,500
Post-modification outstanding principal balance				$ 3,500