Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	$ 1,523,284	$ 1,664,183
Purchased covered loans	250,670	372,283
Purchased non-covered loans	53,790	74,891
Total	1,827,744	2,111,357
Commercial Portfolio Segment [Member] | Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	5	308
Purchased non-covered loans	635	1,261
Commercial Portfolio Segment [Member] | Non Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	20,061	59,135
Purchased non-covered loans	6,890	9,840
Commercial Portfolio Segment [Member] | Purchase Discount [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	(1,530)	(8,459)
Purchased non-covered loans	(726)	(870)
Commercial Portfolio Segment [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	338,824	340,116
Total	364,159	401,331
Commercial Real Estate Portfolio Segment [Member] | Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	2,835	7,585
Purchased non-covered loans	2,520	6,763
Commercial Real Estate Portfolio Segment [Member] | Non Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	172,727	247,534
Purchased non-covered loans	33,192	38,673
Commercial Real Estate Portfolio Segment [Member] | Purchase Discount [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	(8,122)	(15,140)
Purchased non-covered loans	(786)	(1,748)
Commercial Real Estate Portfolio Segment [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	596,653	632,927
Total	799,019	916,594
Construction Portfolio Segment [Member] | Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans		1,824
Construction Portfolio Segment [Member] | Non Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	3,223	5,462
Purchased non-covered loans		1,619
Construction Portfolio Segment [Member] | Purchase Discount [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	(50)	(279)
Purchased non-covered loans		(95)
Construction Portfolio Segment [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	10,723	7,984
Total	13,896	16,515
Residential Portfolio Segment [Member] | Non Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	8,558	9,374
Purchased non-covered loans	999	3,110
Residential Portfolio Segment [Member] | Purchase Discount [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	(434)	(433)
Purchased non-covered loans	(262)	(474)
Residential Portfolio Segment [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	176,196	222,458
Total	185,057	234,035
Consumer Portfolio Segment [Member] | Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	247	257
Purchased non-covered loans	147	297
Consumer Portfolio Segment [Member] | Non Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	53,947	66,932
Purchased non-covered loans	12,652	18,554
Consumer Portfolio Segment [Member] | Purchase Discount [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	(797)	(1,817)
Purchased non-covered loans	(1,471)	(2,039)
Consumer Portfolio Segment [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	400,888	460,698
Total	465,613	542,882
Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	3,087	9,974
Purchased non-covered loans	3,302	8,321
Non Impaired [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	258,516	388,437
Purchased non-covered loans	53,733	71,796
Purchase Discount [Member]
Note 3 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Purchased covered loans	(10,933)	(26,128)
Purchased non-covered loans	$ (3,245)	$ (5,226)