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Shareholders' Equity
6 Months Ended
Jun. 30, 2012
Stockholders' Equity Note [Abstract]  
Stockholders' Equity Note Disclosure [Text Block]
Balance, December 31, 2010 61,642
Granted 52,139
Vested (49,805)
Cancelled (5,504)
Stock dividend5,305
Balance, December 31, 2011 63,777
Granted 57,012
Vested (5,130)
Cancelled (407)
Balance, June 30, 2012115,252