Note 7 - Loans and Allowance for Loan Losses (Details) - Activity In The Allowance For Loan Losses (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at Beginning of Period	$ 18,690	$ 23,563	$ 20,577	$ 24,445
Balance at End of Period	17,123	22,943	17,123	22,943
Provision for loan losses	(1,388)	(362)	(1,256)	(994)
Recoveries	246	176	476	431
Loans charged off	(425)	(434)	(2,674)	(939)
Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at Beginning of Period	17,114	21,402	18,716	22,254
Balance at End of Period	15,448	20,240	15,448	20,240
Provision for loan losses	(1,603)	(848)	(2,359)	(1,500)
Recoveries	189	48	357	184
Loans charged off	(252)	(362)	(1,266)	(698)
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at Beginning of Period	1,201	1,558	1,409	1,513
Balance at End of Period	1,338	2,177	1,338	2,177
Provision for loan losses	205	624	1,130	617
Recoveries	18	14	45	97
Loans charged off	(86)	(19)	(1,246)	(50)
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at Beginning of Period	375	603	452	678
Balance at End of Period	337	526	337	526
Provision for loan losses	10	(138)	(27)	(111)
Recoveries	39	114	74	150
Loans charged off	$ (87)	$ (53)	$ (162)	$ (191)