Note 10 - Fair Value of Financial Instruments (Details) - Quantitative information about non-recurring Level 3 fair value of financial instruments and the fair value measurements: (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Loans Held For Sale [Member]
Assets:
Fair Value (in Dollars)	$ 335
Valuation Technique	Fair value of collateral
Unobservable Input	Loss severity discount
Range	(24.40%)
Loans Held For Sale [Member] | Maximum [Member]
Assets:
Range	24.40%
Impaired loans [Member]
Assets:
Fair Value (in Dollars)	38,778
Valuation Technique	Fair value of collateral
Unobservable Input	Loss severity discount
Range	(32.90%)
Impaired loans [Member] | Minimum [Member]
Assets:
Range	0.50%
Impaired loans [Member] | Maximum [Member]
Assets:
Range	89.50%
Other real estate owned [Member]
Assets:
Fair Value (in Dollars)	$ 2,591
Valuation Technique	Fair value of collateral
Unobservable Input	Loss severity discount
Range	(16.10%)
Other real estate owned [Member] | Minimum [Member]
Assets:
Range	0.00%
Other real estate owned [Member] | Maximum [Member]
Assets:
Range	80.70%