Note 3: Loans and Allowance For Loan Losses: Schedule of Balance in Allowance for Loan Losses Based on Portfolio Segment and Impairment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Provision for loan losses	$ 4,151	$ 17,386	$ 43,863
One To Four Family Residential Construction
Provision for Loan Losses Expensed	(1,025)	1,496	(1,626)
Financing Receivable, Allowance for Credit Losses, Write-downs	(2,251)	(2,196)	(3,203)
Allowance for Doubtful Accounts Receivable, Recoveries	496	113	227
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	829	2,501	2,288
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,532	3,734	4,533
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	94		1
Financing Receivable, Individually Evaluated for Impairment	11,488	13,055	14,691
Financing Receivable, Collectively Evaluated for Impairment	288,066	297,057	279,502
Financing Receivable, Acquired with Deteriorated Credit Quality	234,158	206,964	278,889
One To Four Family Residential Construction | Balance beginning of period
Provision for loan losses	6,235	6,822	11,424
One To Four Family Residential Construction | Balance end of period
Provision for loan losses	3,455	6,235	6,822
Other Residential
Provision for Loan Losses Expensed	227	1,556	4,471
Financing Receivable, Allowance for Credit Losses, Write-downs	(1)	(3,248)	(3,579)
Allowance for Doubtful Accounts Receivable, Recoveries	37	43	347
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment			1,089
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,923	2,678	3,238
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	18
Financing Receivable, Individually Evaluated for Impairment	9,804	10,983	16,405
Financing Receivable, Collectively Evaluated for Impairment	382,610	314,616	251,113
Financing Receivable, Acquired with Deteriorated Credit Quality	48,470	35,095	53,280
Other Residential | Balance beginning of period
Provision for loan losses	2,678	4,327	3,088
Other Residential | Balance end of period
Provision for loan losses	2,941	2,678	4,327
Commercial Real Estate
Provision for Loan Losses Expensed	1,855	6,922	16,360
Financing Receivable, Allowance for Credit Losses, Write-downs	(2,160)	(9,836)	(18,010)
Allowance for Doubtful Accounts Receivable, Recoveries	3,139	2,412	701
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,751	90	4,990
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	16,671	16,845	12,442
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	1,351	4	9
Financing Receivable, Individually Evaluated for Impairment	28,641	31,591	48,476
Financing Receivable, Collectively Evaluated for Impairment	917,235	791,329	687,663
Financing Receivable, Acquired with Deteriorated Credit Quality	107,278	84,591	129,128
Commercial Real Estate | Balance beginning of period
Provision for loan losses	16,939	17,441	18,390
Commercial Real Estate | Balance end of period
Provision for loan losses	19,773	16,939	17,441
Commercial Construction
Provision for Loan Losses Expensed	(957)	1,142	18,101
Financing Receivable, Allowance for Credit Losses, Write-downs	(126)	(788)	(18,027)
Allowance for Doubtful Accounts Receivable, Recoveries	181	172	882
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,507	473	96
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	1,905	3,991	3,842
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	150
Financing Receivable, Individually Evaluated for Impairment	7,601	12,628	12,009
Financing Receivable, Collectively Evaluated for Impairment	437,424	229,232	201,065
Financing Receivable, Acquired with Deteriorated Credit Quality	1,937	6,989	7,997
Commercial Construction | Balance beginning of period
Provision for loan losses	4,464	3,938	2,982
Commercial Construction | Balance end of period
Provision for loan losses	3,562	4,464	3,938
Commercial Business
Provision for Loan Losses Expensed	409	4,404	4,897
Financing Receivable, Allowance for Credit Losses, Write-downs	(3,286)	(4,072)	(3,082)
Allowance for Doubtful Accounts Receivable, Recoveries	105	1,023	307
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	823	4,162	2,778
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	2,805	2,287	2,314
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	51	2	4
Financing Receivable, Individually Evaluated for Impairment	2,725	8,755	10,064
Financing Receivable, Collectively Evaluated for Impairment	392,348	306,514	254,567
Financing Receivable, Acquired with Deteriorated Credit Quality	17,789	4,883	14,939
Commercial Business | Balance beginning of period
Provision for loan losses	6,451	5,096	2,974
Commercial Business | Balance end of period
Provision for loan losses	3,679	6,451	5,096
Consumer
Provision for Loan Losses Expensed	3,642	1,866	1,660
Financing Receivable, Allowance for Credit Losses, Write-downs	(4,005)	(3,312)	(2,390)
Allowance for Doubtful Accounts Receivable, Recoveries	2,039	1,770	1,381
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	232	218	156
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	4,321	3,131	2,866
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	472		3
Financing Receivable, Individually Evaluated for Impairment	1,480	1,389	980
Financing Receivable, Collectively Evaluated for Impairment	466,174	273,871	219,670
Financing Receivable, Acquired with Deteriorated Credit Quality	48,903	47,642	39,616
Consumer | Balance beginning of period
Provision for loan losses	3,349	3,025	2,374
Consumer | Balance end of period
Provision for loan losses	5,025	3,349	3,025
Total Allowance for Loan Losses
Provision for Loan Losses Expensed	4,151	17,386	43,863
Financing Receivable, Allowance for Credit Losses, Write-downs	(11,829)	(23,452)	(48,291)
Allowance for Doubtful Accounts Receivable, Recoveries	5,997	5,533	3,845
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	5,142	7,444	11,397
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	31,157	32,666	29,235
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	2,136	6	17
Financing Receivable, Individually Evaluated for Impairment	61,739	78,401	102,625
Financing Receivable, Collectively Evaluated for Impairment	2,883,857	2,212,619	1,893,580
Financing Receivable, Acquired with Deteriorated Credit Quality	458,535	386,164	523,849
Total Allowance for Loan Losses | Balance beginning of period
Provision for loan losses	40,116	40,649	41,232
Total Allowance for Loan Losses | Balance end of period
Provision for loan losses	$ 38,435	$ 40,116	$ 40,649