CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Securities held-to-maturity, fair value	$ 68,309	$ 80,607
Loans, allowance for loan losses	$ 4,448	$ 4,576
Common stock, no par value
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	7,439,368	7,439,368
Treasury stock, shares	1,831,654	1,703,065