Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans and Associated Reserves (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013		Mar. 31, 2013
Financing Receivable, Impaired [Line Items]
Principal Balance	$ 12,602		$ 12,985		$ 17,258
Total Recorded Investment	12,609	[1]	12,989	[1]
Recorded Investment in for Which There is No Related Allowance	10,143	[1]	10,635	[1]
Recorded Investment in for Which There is a Related Allowance	2,466	[1]	2,354	[1]
Related Allowance	280		624		273
Consumer Real Estate [Member] | Residential closed end first liens [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	399	[2]	440	[2]
Total Recorded Investment	401	[1],[2]	442	[1],[2]
Recorded Investment in for Which There is No Related Allowance	171	[1],[2]	232	[1],[2]
Recorded Investment in for Which There is a Related Allowance	230	[1],[2]	210	[1],[2]
Related Allowance	3	[2]	3	[2]
Consumer Real Estate [Member] | Residential closed end junior liens [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	253	[2]	259	[2]
Total Recorded Investment	253	[1],[2]	261	[1],[2]
Recorded Investment in for Which There is No Related Allowance		[1],[2]		[1],[2]
Recorded Investment in for Which There is a Related Allowance	253	[1],[2]	261	[1],[2]
Related Allowance	6	[2]	7	[2]
Consumer Real Estate [Member] | Investor-owned residential real estate [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	78	[2]	81
Total Recorded Investment	78	[1],[2]	82
Recorded Investment in for Which There is No Related Allowance		[1],[2]	82
Recorded Investment in for Which There is a Related Allowance	78	[1],[2]
Related Allowance		[2]
Commercial Real Estate Loans [Member] | Multifamily real estate [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	3,271	[2]	3,278	[2]
Total Recorded Investment	3,268	[1],[2]	3,274	[1],[2]
Recorded Investment in for Which There is No Related Allowance	3,268	[1],[2]	3,274	[1],[2]
Recorded Investment in for Which There is a Related Allowance		[1],[2]		[1],[2]
Related Allowance		[2]		[2]
Commercial Real Estate Loans [Member] | Commercial real estate, owner occupied [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	5,346	[2]	5,643	[2]
Total Recorded Investment	5,354	[1],[2]	5,645	[1],[2]
Recorded Investment in for Which There is No Related Allowance	3,543	[1],[2]	3,864	[1],[2]
Recorded Investment in for Which There is a Related Allowance	1,811	[1],[2]	1,781	[1],[2]
Related Allowance	266	[2]	610	[2]
Commercial Real Estate Loans [Member] | Commercial real estate, other [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	3,137	[2]	3,158
Total Recorded Investment	3,137	[1],[2]	3,158
Recorded Investment in for Which There is No Related Allowance	3,137	[1],[2]	3,158
Recorded Investment in for Which There is a Related Allowance		[1],[2]
Related Allowance		[2]
Commercial Non Real Estate [Member] | Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	94	[2]	102	[2]
Total Recorded Investment	94	[1],[2]	103	[1],[2]
Recorded Investment in for Which There is No Related Allowance		[1],[2]	1	[1],[2]
Recorded Investment in for Which There is a Related Allowance	94	[1],[2]	102	[1],[2]
Related Allowance	5	[2]	4	[2]
Consumer Non Real Estate [Member] | Automobile [Member]
Financing Receivable, Impaired [Line Items]
Principal Balance	24	[2]	24	[2]
Total Recorded Investment	24	[1],[2]	24	[1],[2]
Recorded Investment in for Which There is No Related Allowance	24	[1],[2]	24	[1],[2]
Recorded Investment in for Which There is a Related Allowance		[1],[2]		[1],[2]
Related Allowance		[2]		[2]

[1] Recorded investment includes principal net of unearned interest and deferred fees and costs, and accrued interest.

[2] Only classes with impaired loans are shown.