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Fair Values (Details Textual) (USD $)
6 Months Ended 12 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Fair Values (Textual) [Abstract]    
Recorded cost of mortgage loans held for sale $ 3,000,000 $ 3,500,000
Transfers in or out of level 1, level 2 or level 3 $ 0 $ 0