Note 18 - Fair Value of Financial Instruments (Details) - Quantitative Information About Recurring and Non-Recurring Level 3 Fair Value of Financial Instruments as Well as Assumptions Used in Estimating Fair Value (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Municipal [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	0.20%
Municipal [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	4.00%
Municipal [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(2.30%)
Municipal [Member]
Assets:
Fair Value (in Dollars)	15,519
Valuation Technique	Discounted cash flows
Unobservable Input	Discount rate
Trust Preferred Securities [Member] | Minimum [Member]
Assets:
Range (Weighted Average)	7.00%
Trust Preferred Securities [Member] | Maximum [Member]
Assets:
Range (Weighted Average)	7.25%
Trust Preferred Securities [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(7.20%)
Trust Preferred Securities [Member]
Assets:
Fair Value (in Dollars)	7,090
Valuation Technique	Discounted cash flows
Unobservable Input	Discount rate
Junior Subordinated Debentures [Member] | Weighted Average [Member]
Assets:
Range (Weighted Average)	(7.00%)
Junior Subordinated Debentures [Member]
Assets:
Fair Value (in Dollars)	28,771
Valuation Technique	Discounted cash flows
Unobservable Input	Discount rate
Range (Weighted Average)	7.00%