Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized (USD $) In Thousands, unless otherwise specified	9 Months Ended				12 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	$ 15,974	[1],[2]	$ 17,357	[1]	$ 16,654	[1],[2],[3]
Interest income recognized	384	[2]	159		267	[2]
Residential Closed End First Liens [Member] | Consumer Real Estate Loans [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	385	[1],[2]			364	[2],[3]
Interest income recognized	19	[2]			3	[2]
Residential Closed End Junior Liens [Member] | Consumer Real Estate Loans [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	251	[1],[2]			280	[2],[3]
Interest income recognized	12	[2]			9	[2]
Investor-Owned Residential Real Estate [Member] | Consumer Real Estate Loans [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	78	[1],[2]			131	[2],[3]
Interest income recognized	4	[2]			6	[2]
Multifamily Real Estate [Member] | Commercial Real Estate Loans [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	2,807	[1],[2]			4,172	[2],[3]
Interest income recognized		[2]				[2]
Commercial Real Estate, Owner Occupied [Member] | Commercial Real Estate Loans [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	5,606	[1],[2]			5,265	[2],[3]
Interest income recognized	153	[2]			136	[2]
Commercial Real Estate, Other [Member] | Commercial Real Estate Loans [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	6,134	[1],[2]			3,369	[2],[3]
Interest income recognized	164	[2]			110	[2]
Commercial and Industrial [Member] | Commercial Non Real Estate [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment	713	[1],[2]			117	[2],[3]
Interest income recognized	32	[2]			3	[2]
Automobile [Member] | Consumer Non Real Estate [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment		[1],[2]			31	[2],[3]
Interest income recognized		[2]				[2]
Construction Residential [Member] | Real Estate Construction [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment					40	[2],[3]
Interest income recognized						[2]
Construction Other [Member] | Real Estate Construction [Member]
Note 4 - Allowance for Loan Losses, Nonperforming Assets and Impaired Loans (Details) - Impaired Loans, Average Investment and Interest Income Recognized [Line Items]
Average recorded investment					2,885	[2],[3]
Interest income recognized						[2]

[1] Recorded investment is net of charge-offs and interest paid while a loan is in nonaccrual status.

[2] Only classes with impaired loans are shown.

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