Note 4 - Loans (Details) - Loans Secured by Commercial Real Estate (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013
Construction Land Development And Other Land Loans [Member]
Secured by commercial real estate
Commercial real estate included in gross loans (in Dollars)	$ 69,335
Commercial real estate included in other loans held for sale	9.30%
Total commercial real estate loans	58.00%
Multi Family Residential [Member]
Secured by commercial real estate
Commercial real estate included in gross loans (in Dollars)	11,196
Commercial real estate included in other loans held for sale	1.50%
Total commercial real estate loans	9.40%
Non Farm Nonresidential [Member]
Secured by commercial real estate
Commercial real estate included in gross loans (in Dollars)	369,088
Commercial real estate included in other loans held for sale	49.80%
Total commercial real estate loans	308.80%
Commercial [Member]
Secured by commercial real estate
Commercial real estate included in gross loans (in Dollars)	$ 449,619
Commercial real estate included in other loans held for sale	60.60%
Total commercial real estate loans	376.20%