Note 9 - Other Real Estate Owned (Details) - Other Real Estate Owned (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Note 9 - Other Real Estate Owned (Details) - Other Real Estate Owned [Line Items]
Other Real Estate Owned	$ 41,661	$ 52,562	$ 47,480	$ 38,157
Construction and Land Development OREO [Member]
Note 9 - Other Real Estate Owned (Details) - Other Real Estate Owned [Line Items]
Other Real Estate Owned	25,778	32,360
Residential Real Estate OREO [Member]
Note 9 - Other Real Estate Owned (Details) - Other Real Estate Owned [Line Items]
Other Real Estate Owned	2,868	4,605
Farmland and Other Commercial Enterprises OREO [Member]
Note 9 - Other Real Estate Owned (Details) - Other Real Estate Owned [Line Items]
Other Real Estate Owned	13,015	15,597
Total OREO [Member]
Note 9 - Other Real Estate Owned (Details) - Other Real Estate Owned [Line Items]
Other Real Estate Owned	$ 41,661	$ 52,562