Note 10 - Fair Value of Financial Instruments (Details) - Quantitative Information About Recurring Level 3 Fair Value of Financial Instruments and the Fair Value Measurements (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013
Municipal [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	0.20%
Municipal [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	4.00%
Municipal [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(2.80%)
Municipal [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value (in Dollars)	$ 12,453	$ 10,592	$ 9,223
Valuation Technique	Discounted cash flows
Unobservable Input	Discount rate
Municipal - 1 [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	7.00%
Municipal - 1 [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	10.40%
Municipal - 1 [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(8.40%)
Municipal - 1 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Unobservable Input	Discount rate
Municipal - 2 [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	30.40%
Municipal - 2 [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	39.70%
Municipal - 2 [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(35.00%)
Municipal - 2 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Unobservable Input	Prepayment assumptions
Trust Preferred Securities [Member] | Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	0.20%
Trust Preferred Securities [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	20.50%
Trust Preferred Securities [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(10.50%)
Trust Preferred Securities [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value (in Dollars)	13,618	13,361	14,935
Valuation Technique	Discounted cash flows
Unobservable Input	Defaults
Junior subordinated debentures [Member] | Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	7.00%
Junior subordinated debentures [Member] | Weighted Average [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Range (Weighted Average)	(7.00%)
Junior subordinated debentures [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value (in Dollars)	$ 29,535	$ 29,388	$ 29,570
Valuation Technique	Discounted cash flows
Unobservable Input	Discount rate