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Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Common Stock
   
Cash dividends, per share $ 0.03 $ 0.03
Shares granted to directors 23,156 29,914
Restricted Stock
   
Restricted share awards vested 37,000 6,000