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Note 6: Investment Securities: Schedule of Available for Sale Securities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
US government agencies
Available-for-sale Securities, Amortized Cost Basis	$ 30,000	$ 20,000
Available-for-sale Securities, Gross Unrealized Gains	60	60
Available-for-sale Securities, Fair Value Disclosure	30,060	20,060
Available for Sale Securities Tax Equivalent Yield	1.25%	1.12%
Fair value collateralized mortgage obligations
Available-for-sale Securities, Amortized Cost Basis	4,587	5,220
Available-for-sale Securities, Gross Unrealized Gains	597
Available-for-sale Securities, Gross Unrealized Losses	305	380
Available-for-sale Securities, Fair Value Disclosure	4,879	4,840
Available for Sale Securities Tax Equivalent Yield	5.35%	5.53%
Fair value mortgage-backed securities
Available-for-sale Securities, Amortized Cost Basis	556,431	628,729
Available-for-sale Securities, Gross Unrealized Gains	16,624	13,728
Available-for-sale Securities, Gross Unrealized Losses	40	802
Available-for-sale Securities, Fair Value Disclosure	573,015	641,655
Available for Sale Securities Tax Equivalent Yield	2.70%	3.12%
Small Business Administration loan pools
Available-for-sale Securities, Amortized Cost Basis	51,580	55,422
Available-for-sale Securities, Gross Unrealized Gains	1,264	1,070
Available-for-sale Securities, Fair Value Disclosure	52,844	56,492
Available for Sale Securities Tax Equivalent Yield	2.12%	1.68%
States and political subdivisions
Available-for-sale Securities, Amortized Cost Basis	114,912	145,663
Available-for-sale Securities, Gross Unrealized Gains	9,104	5,478
Available-for-sale Securities, Gross Unrealized Losses		903
Available-for-sale Securities, Fair Value Disclosure	124,016	150,238
Available for Sale Securities Tax Equivalent Yield	5.61%	5.72%
Corporate bonds
Available-for-sale Securities, Amortized Cost Basis	47	50
Available-for-sale Securities, Gross Unrealized Gains	275	245
Available-for-sale Securities, Fair Value Disclosure	322	295
Available for Sale Securities Tax Equivalent Yield	45.49%	39.65%
Fair value equity securities
Available-for-sale Securities, Amortized Cost Basis	847	1,230
Available-for-sale Securities, Gross Unrealized Gains	1,135	601
Available-for-sale Securities, Fair Value Disclosure	1,982	1,831
Total Available for Sale Securities
Available-for-sale Securities, Amortized Cost Basis	758,404	856,314
Available-for-sale Securities, Gross Unrealized Gains	29,059	21,182
Available-for-sale Securities, Gross Unrealized Losses	345	2,085
Available-for-sale Securities, Fair Value Disclosure	$ 787,118	$ 875,411
Available for Sale Securities Tax Equivalent Yield	3.06%	3.44%

X

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

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Namespace Prefix:	fil_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 7

-Footnote 2

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 19

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6379932&loc=d3e22054-111558



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

-URI http://asc.fasb.org/extlink&oid=6505594

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X

- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13, 19

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563

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Balance Type:	debit
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X

- Definition

This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

No definition available.

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