Note 3 - Investment Securities (Details) - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Amortized Cost and Fair Value of Debt Securities by Contractual Maturity [Abstract]
Due in one year or less	$ 120
Due in one year or less	121
Due in one year or less	0
Due in one year or less	0
Due after one year through five years	15,679
Due after one year through five years	15,786
Due after one year through five years	0
Due after one year through five years	0
Due after five years through ten years	20,366
Due after five years through ten years	20,852
Due after five years through ten years	0
Due after five years through ten years	0
Due after ten years	14,149
Due after ten years	14,703
Due after ten years	0
Due after ten years	0
	50,314
	51,462
	0
	0
Mortgage-backed securities and CMO	46,596
Mortgage-backed securities and CMO	46,681
Mortgage-backed securities and CMO	6
Mortgage-backed securities and CMO	6
	96,910
	98,143
	6us-gaap_HeldToMaturitySecurities	9us-gaap_HeldToMaturitySecurities
	$ 6	$ 9

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This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.