Note 6 - Loans (Details) - Troubled Debt Restructurings with Subsequent Payment Default - Jun. 30, 2014 $ in Thousands	USD ($)	USD ($)
Note 6 - Loans (Details) - Troubled Debt Restructurings with Subsequent Payment Default [Line Items]
Troubled debt restructurings with payment default, number of loans	1	3
Troubled debt restructurings with payment default, recorded investment	$ 236	$ 2,833
Commercial Real Estate Portfolio Segment [Member]
Note 6 - Loans (Details) - Troubled Debt Restructurings with Subsequent Payment Default [Line Items]
Troubled debt restructurings with payment default, number of loans		2
Troubled debt restructurings with payment default, recorded investment		$ 2,597
Commercial Real Estate Portfolio Segment [Member] | Nonfarm Nonresidential [Member]
Note 6 - Loans (Details) - Troubled Debt Restructurings with Subsequent Payment Default [Line Items]
Troubled debt restructurings with payment default, number of loans		2
Troubled debt restructurings with payment default, recorded investment		$ 2,597
Commercial and Industrial Portfolio Segment[Member]
Note 6 - Loans (Details) - Troubled Debt Restructurings with Subsequent Payment Default [Line Items]
Troubled debt restructurings with payment default, number of loans	1	1
Troubled debt restructurings with payment default, recorded investment	$ 236	$ 236