Note 2 - Fair Value of Financial Instruments (Details) - Level 3 Fair Value Measurements September 2013 (USD $) In Thousands, unless otherwise specified	9 Months Ended				12 Months Ended	9 Months Ended
	Sep. 30, 2013 Residential Real Estate Loans [Member] Impaired Loans [Member]	Sep. 30, 2013 Residential Real Estate Loans [Member] Maximum [Member] Impaired Loans [Member]	Sep. 30, 2013 Commercial and Industrial [Member] Impaired Loans [Member]	Sep. 30, 2013 Commercial and Industrial [Member] Other Real Estate Owned [Member]	Dec. 31, 2012 Commercial and Industrial [Member]	Sep. 30, 2013 Commercial and Industrial [Member] Minimum [Member] Other Real Estate Owned [Member]	Sep. 30, 2013 Commercial and Industrial [Member] Maximum [Member] Impaired Loans [Member]	Sep. 30, 2013 Commercial and Industrial [Member] Maximum [Member] Other Real Estate Owned [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value (in Dollars)	$ 234		$ 1,888	$ 982	$ 1,055
Valuation Technique(s)	Sales approach		Sales approach	Sales approach	Sales approach
Unobservable Input(s)	Adjustment to comparables		Adjustment to comparables	Adjustment to comparables	Adjustment to comparables
Range	30.00%	28.00%	80.00%		15.00%	10.00%	35.00%	10.00%