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Note 6: Loans Held For Investment: Mortgage Loan Policy (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Dec. 31, 2012
Jun. 30, 2012
Mortgage Loans Subject to Negative Amortization $ 36,400 $ 40,200
Multi-Family Mortgage Loans Subject to Negative Amortization 25,600 26,700
Single-Family Mortgage Loans Subject to Negative Amortization 5,800 6,500
Commercial Real Estate Mortgage Loans Subject to Negative Amortization 5,000 7,000
Loan Interest Income Added to Negative Amortization Loan Balance 0  
Loan Principal Balance Percentage Increase Range from Original Loan Amount Due to Negative Amortization 110% to 115%  
Interest Only ARM Loans $ 201,900 $ 214,200
Interest Only ARM Loans as Percent of Loans Held for Investment 25.60% 26.20%