Note 15: Disclosures About Fair Value of Financial Instruments: Schedule of Fair Value of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financial assets | Cash and Cash Equivalents
Financial Instruments Owned Carrying Amount	$ 404,141	$ 380,249
Financial Instruments, Owned, at Fair Value	404,141	380,249
Financial Instruments Owned Hierarchy Level	1	1
Financial assets | Held-to-maturity Securities
Financial Instruments Owned Carrying Amount	920	1,865
Financial Instruments, Owned, at Fair Value	1,084	2,101
Financial Instruments Owned Hierarchy Level	2	2
Financial assets | Mortgage loans held for sale
Financial Instruments Owned Carrying Amount	26,829	28,920
Financial Instruments, Owned, at Fair Value	26,829	28,920
Financial Instruments Owned Hierarchy Level	2	2
Financial assets | Loans, net of allowance for loan losses
Financial Instruments Owned Carrying Amount	2,319,638	2,124,161
Financial Instruments, Owned, at Fair Value	2,326,051	2,124,032
Financial Instruments Owned Hierarchy Level	3	3
Financial assets | Accrued interest receivable
Financial Instruments Owned Carrying Amount	12,755	13,848
Financial Instruments, Owned, at Fair Value	12,755	13,848
Financial Instruments Owned Hierarchy Level	3	3
Financial assets | Investment in FHLB stock
Financial Instruments Owned Carrying Amount	10,095	12,088
Financial Instruments, Owned, at Fair Value	10,095	12,088
Financial Instruments Owned Hierarchy Level	3	3
Financial liabilities | Structured repurchase agreements
Financial Instruments Owned Carrying Amount	53,039	53,090
Financial Instruments, Owned, at Fair Value	58,901	60,471
Financial Instruments Owned Hierarchy Level	3	3
Financial liabilities | Deposits
Financial Instruments Owned Carrying Amount	3,153,193	2,963,539
Financial Instruments, Owned, at Fair Value	3,162,288	2,966,874
Financial Instruments Owned Hierarchy Level	3	3
Financial liabilities | Federal Home Loan Bank Advances
Financial Instruments Owned Carrying Amount	126,730	184,437
Financial Instruments, Owned, at Fair Value	131,280	189,793
Financial Instruments Owned Hierarchy Level	3	3
Financial liabilities | Short term borrowings
Financial Instruments Owned Carrying Amount	180,416	217,397
Financial Instruments, Owned, at Fair Value	180,416	217,397
Financial Instruments Owned Hierarchy Level	3	3
Financial liabilities | Subordinated Debt
Financial Instruments Owned Carrying Amount	30,929	30,929
Financial Instruments, Owned, at Fair Value	30,929	30,929
Financial Instruments Owned Hierarchy Level	3	3
Financial liabilities | Accrued interest payable
Financial Instruments Owned Carrying Amount	1,322	2,277
Financial Instruments, Owned, at Fair Value	1,322	2,277
Financial Instruments Owned Hierarchy Level	3	3
Unrecognized financial instruments (net of contractual value) | Loan Origination Commitments
Financial Instruments Owned Hierarchy Level	3	3
Unrecognized financial instruments (net of contractual value) | Letter of Credit
Financial Instruments Owned Carrying Amount	84	84
Financial Instruments, Owned, at Fair Value	$ 84	$ 84
Financial Instruments Owned Hierarchy Level	3	3
Unrecognized financial instruments (net of contractual value) | Line of Credit
Financial Instruments Owned Hierarchy Level	3	3