Note 18 - Fair Value of Financial Instruments (Details) - Assets and Liabilities Carried at Fair Value on a Recurring Basis, Classified Within Level 3 of the Valuation Hierarchy (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfer into Level 3	$ 6,100
REMIC And CMO [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	23,475
Transfer into Level 3		23,475
Principal repayments	(5,036)
Sales	(19,973)
Other-than-temporary impairment charge	(1,419)
Change in unrealized gains	2,953
Ending balance		23,475
Municipals [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	9,429
Transfer into Level 3		9,429
Principal repayments	(206)
Ending balance	9,223	9,429
Trust Preferred Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	6,650	5,632
Transfer into Level 3	6,126
Net gain (loss) from fair value adjustment of financial assets	884	233
Decrease in accrued interest payable		(10)
Decrease in accrued interest payable		10
Change in unrealized gains	1,275	795
Ending balance	14,935	6,650
Changes in unrealized held at period end	1,275
Junior Subordinated Debentures [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	23,922	26,311
Net gain (loss) from fair value adjustment of financial liabilities	5,651	(2,062)
Decrease in accrued interest payable	3	327
Decrease in accrued interest payable	(3)	(327)
Ending balance	$ 29,570	$ 23,922