Note 3: Loans and Allowance For Loan Losses: Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Provision for loan losses	$ 5,519	$ 4,151	$ 17,386
One To Four Family Residential Construction
Provision for Loan Losses Expensed	1,428	(1,025)	1,496
Financing Receivable, Allowance for Credit Losses, Write-downs	(80)	(2,251)	(2,196)
Allowance for Doubtful Accounts Receivable, Recoveries	97	496	113
Financing Receivable, Individually Evaluated for Impairment	6,129	11,488	13,055
Financing Receivable, Collectively Evaluated for Impairment	316,052	288,066	297,057
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model	194,697	234,158	206,964
One To Four Family Residential Construction | Beginning of Period
Provision for loan losses	3,455	6,235	6,822
One To Four Family Residential Construction | End of Period
Provision for loan losses	4,900	3,455	6,235
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	731	829	2,501
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	3,464	2,532	3,734
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	705	94
Other Residential
Provision for Loan Losses Expensed	193	227	1,556
Financing Receivable, Allowance for Credit Losses, Write-downs	(2)	(1)	(3,248)
Allowance for Doubtful Accounts Receivable, Recoveries	58	37	43
Financing Receivable, Individually Evaluated for Impairment	9,533	9,804	10,983
Financing Receivable, Collectively Evaluated for Impairment	410,016	382,610	314,616
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model	35,945	48,470	35,095
Other Residential | Beginning of Period
Provision for loan losses	2,941	2,678	4,327
Other Residential | End of Period
Provision for loan losses	3,190	2,941	2,678
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	3,122	2,923	2,678
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	68	18
Commercial Real Estate
Provision for Loan Losses Expensed	(2,753)	1,855	6,922
Financing Receivable, Allowance for Credit Losses, Write-downs	(2,584)	(2,160)	(9,836)
Allowance for Doubtful Accounts Receivable, Recoveries	302	3,139	2,412
Financing Receivable, Individually Evaluated for Impairment	34,629	28,641	31,591
Financing Receivable, Collectively Evaluated for Impairment	1,008,845	917,235	791,329
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model	73,148	107,278	84,591
Commercial Real Estate | Beginning of Period
Provision for loan losses	19,773	16,939	17,441
Commercial Real Estate | End of Period
Provision for loan losses	14,738	19,773	16,939
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	2,556	1,751	90
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	11,888	16,671	16,845
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	294	1,351	4
Commercial Construction
Provision for Loan Losses Expensed	(619)	(957)	1,142
Financing Receivable, Allowance for Credit Losses, Write-downs	(329)	(126)	(788)
Allowance for Doubtful Accounts Receivable, Recoveries	405	181	172
Financing Receivable, Individually Evaluated for Impairment	7,555	7,601	12,628
Financing Receivable, Collectively Evaluated for Impairment	651,679	437,424	229,332
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model	4,981	1,937	6,989
Commercial Construction | Beginning of Period
Provision for loan losses	3,562	4,464	3,938
Commercial Construction | End of Period
Provision for loan losses	3,019	3,562	4,464
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,391	1,507	473
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,570	1,905	3,991
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	58	150
Commercial Business
Provision for Loan Losses Expensed	1,450	409	4,404
Financing Receivable, Allowance for Credit Losses, Write-downs	(1,202)	(3,286)	(4,072)
Allowance for Doubtful Accounts Receivable, Recoveries	276	105	1,023
Financing Receivable, Individually Evaluated for Impairment	2,365	2,725	8,755
Financing Receivable, Collectively Evaluated for Impairment	392,577	392,348	306,514
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model	10,500	17,789	4,883
Commercial Business | Beginning of Period
Provision for loan losses	3,679	6,451	5,096
Commercial Business | End of Period
Provision for loan losses	4,203	3,679	6,451
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,115	823	4,162
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,862	2,805	2,287
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	226	51	2
Consumer Loan
Provision for Loan Losses Expensed	5,820	3,642	1,866
Financing Receivable, Allowance for Credit Losses, Write-downs	(5,315)	(4,005)	(3,312)
Allowance for Doubtful Accounts Receivable, Recoveries	2,569	2,039	1,770
Financing Receivable, Individually Evaluated for Impairment	1,950	1,480	1,389
Financing Receivable, Collectively Evaluated for Impairment	596,740	466,174	273,871
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model	43,574	48,903	47,642
Consumer Loan | Beginning of Period
Provision for loan losses	5,025	3,349	3,025
Consumer Loan | End of Period
Provision for loan losses	8,099	5,025	3,349
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	300	232	218
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	7,647	4,321	3,131
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	152	472
Loans Receivable
Provision for Loan Losses Expensed	5,519	4,151	17,386
Financing Receivable, Allowance for Credit Losses, Write-downs	(9,512)	(11,829)	(23,452)
Allowance for Doubtful Accounts Receivable, Recoveries	3,707	5,997	5,533
Financing Receivable, Individually Evaluated for Impairment	62,161	61,739	78,401
Financing Receivable, Collectively Evaluated for Impairment	3,375,909	2,883,857	2,212,619
All Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Not Accounted for Using Income Recognition Model	362,845	458,535	386,164
Loans Receivable | Beginning of Period
Provision for loan losses	38,435	40,116	40,649
Loans Receivable | End of Period
Provision for loan losses	38,149	38,435	40,116
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	6,093	5,142	7,444
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	30,553	31,157	32,666
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Provision for Loan Losses	$ 1,503	$ 2,136	$ 6