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Consolidated Balance Sheets [Parenthetical]
Mar. 31, 2012
Dec. 31, 2011
Preferred stock, shares authorized 10,000,000 10,000,000
Preferred stock, shares outstanding 0 0
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 2,888,902 2,888,902
Common stock, shares outstanding 2,837,562 2,835,403
Treasury stock, shares 51,340 53,499