Note 12 - Borrowings (Details) - FHLB Borrowed Funds Utilization and Availability (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
FHLB advances outstanding	$ 50,000	$ 35,000
Excess lendable collateral value pledged to serve against FHLB advances	25,714	44,139
Investment Security [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Available lendable loan collateral value pledged to serve against FHLB advances	$ 75,714	$ 79,139

Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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