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Supplemental Consolidated Financial Information (Details 1) (Consumer Loans [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Sep. 30, 2012
Dec. 31, 2011
Consumer Loans [Member]
     
Line of Credit Facility [Line Items]      
Expected LOC Losses $ 2,363 $ 1,776 $ 2,105
Maximum Exposure For LOC Losses $ 33,089 $ 27,373 $ 34,873