Note 4 - Loans (Details) - Gross Loans and Commercial Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012
Note 4 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	$ 741,355	$ 739,058
Percentage of loans and leases receivable gross carrying amount	100.00%	100.00%
Less: other loans held for sale	0	(776)
Loans, gross	741,355	738,282	723,986
Commercial Real Estate Loans [Member]
Note 4 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	449,619	459,212
Percentage of loans and leases receivable gross carrying amount	60.60%	62.10%
Loans, gross	449,619		441,588
Single Family Residential Loans [Member]
Note 4 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	170,735	168,180
Percentage of loans and leases receivable gross carrying amount	23.00%	22.80%
Loans, gross	170,735	168,180
Commercial And Industrial Loans [Member]
Note 4 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	63,993	51,661
Percentage of loans and leases receivable gross carrying amount	8.60%	7.00%
Consumer [Member]
Note 4 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	48,480	50,574
Percentage of loans and leases receivable gross carrying amount	6.60%	6.80%
Loans, gross	48,480	50,574	51,816
Other Financing Receivable [Member]
Note 4 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	$ 8,528	$ 9,431
Percentage of loans and leases receivable gross carrying amount	1.20%	1.30%