Note 4: Loans and Allowance For Loan Losses: Purchased Credit Impaired Loans Aging Policy (Details) (USD $)	Mar. 31, 2013
60-89 Days Past Due
Purchased Credit Impaired Loans	$ 0
Greater Than 90 Days Past Due
Purchased Credit Impaired Loans	0
Total Past Due
Purchased Credit Impaired Loans	1,600,000
Current
Purchased Credit Impaired Loans	4,400,000
Greater Than 90 Days and Accruing
Purchased Credit Impaired Loans	$ 0