Note 4 - Loans and Allowance for Loan Losses (Details) - Allowance for Loan Losses Activity, by Portfolio Segment (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Allowance for loan losses:
Balance	$ 6,155	$ 6,905
Provision for Loan Losses	494	31
Loans charged off	(466)	(796)
Recoveries	279	532
Balance	6,462	6,672
Residential Portfolio Segment [Member]
Allowance for loan losses:
Balance	1,250	1,329
Provision for Loan Losses	307	327
Loans charged off	(54)	(357)
Recoveries	13	15
Balance	1,516	1,314
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses:
Balance	2,807	3,946
Provision for Loan Losses	68	(478)
Loans charged off	(157)	(2)
Recoveries	22	278
Balance	2,740	3,744
Commercial and Industrial [Member]
Allowance for loan losses:
Balance	1,305	783
Provision for Loan Losses	(28)	(33)
Recoveries	80	11
Balance	1,357	761
Consumer Portfolio Segment [Member]
Allowance for loan losses:
Balance	793	847
Provision for Loan Losses	147	215
Loans charged off	(255)	(437)
Recoveries	164	228
Balance	$ 849	$ 853