Note 5 - Loans (Details) - Gross Loans and Commercial Loans (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Note 5 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	$ 756,814	$ 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	756,814	738,282	733,940
Commercial Real Estate Loans [Member]
Note 5 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	455,058	459,212
Percentage of loans and leases receivable gross carrying amount	60.10%	62.10%
Loans, gross	455,058		451,384
Single Family Residential Loans [Member]
Note 5 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	174,693	168,180
Percentage of loans and leases receivable gross carrying amount	23.10%	22.80%
Loans, gross	174,693	168,180
Commercial And Industrial Loans [Member]
Note 5 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	67,097	51,661
Percentage of loans and leases receivable gross carrying amount	8.90%	7.00%
Consumer [Member]
Note 5 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	49,396	50,574
Percentage of loans and leases receivable gross carrying amount	6.50%	6.80%
Loans, gross	49,396	50,574	51,371
Other Financing Receivable [Member]
Note 5 - Loans (Details) - Gross Loans and Commercial Loans [Line Items]
Loans	$ 10,570	$ 9,431
Percentage of loans and leases receivable gross carrying amount	1.40%	1.30%