Note 6 - Other Borrowed Funds (Details) - Other Borrowed Funds - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Other borrowed funds	$ 24,322	$ 24,972
Federal Home Loan Bank Advances [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Other borrowed funds	20,531	21,181
Promissory Notes [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Other borrowed funds	$ 3,791	$ 3,791