Note 11 - Borrowings (Details) - FHLB Borrowed Funds Utilization and Availability (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Total lendable collateral value pledged to serve against FHLB borrowings	$ 82,499	$ 79,922
Loans [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Available lendable investment security collateral value pledged to serve against FHLB borrowings	82,499	79,922
Investment Security [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Available lendable investment security collateral value pledged to serve against FHLB borrowings	$ 0	$ 0