Note 5 - Regulatory Capital (Detail) - Bank's Capital (USD $)
In Thousands, unless otherwise specified
9 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Dec. 31, 2010
Sep. 30, 2012
GAAP [Member]
Dec. 31, 2011
GAAP [Member]
Sep. 30, 2012
U.S. Banking Regulations [Member]
Dec. 31, 2011
U.S. Banking Regulations [Member]
Capital Under GAAP $ 50,366   $ 48,300   $ 48,875 $ 47,277 $ 50,366 $ 48,300
Unrealized Gains on Available-for-Sale Securities (141) 48         (424) (593)
Tier 1 Capital 48,451   46,684          
Allowance for Loan Losses 1,915   1,805 1,759     1,915 1,677
Recourse Obligations     (61)          
Total Risk-Based Capital $ 50,366   $ 48,300   $ 48,875 $ 47,277 $ 50,366 $ 48,300