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Note 6: Investment Securities: Schedule of Available-for-sale Securities Reconciliation (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2014 | Dec. 31, 2013
--- | --- | ---
Available-for-sale Securities, Amortized Cost Basis | $ 523,963 |
Available-for-sale Securities Fair Value | 532,110 |
Available-for-sale Securities |  |
Available-for-sale Securities, Amortized Cost Basis | 523,963 | 551,441
Available For Sale Debt Securities Gross Unrealized Gain | 12,543 | 10,789
Available For Sale Debt Securities Gross Unrealized Loss | 4,396 | 6,949
Available-for-sale Securities Fair Value | 532,110 | 555,281
Available for Sale Securities Tax Equivalent Yield | 2.69% | 2.74%
US Government Agencies Debt Securities |  |
Available-for-sale Securities, Amortized Cost Basis | 20,000 | 20,000
Available For Sale Debt Securities Gross Unrealized Loss | 2,026 | 2,745
Available-for-sale Securities Fair Value | 17,974 | 17,255
Available for Sale Securities Tax Equivalent Yield | 2.00% | 2.00%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises |  |
Available-for-sale Securities, Amortized Cost Basis | 340,127 | 365,020
Available For Sale Debt Securities Gross Unrealized Gain | 4,913 | 4,824
Available For Sale Debt Securities Gross Unrealized Loss | 1,726 | 2,266
Available-for-sale Securities Fair Value | 343,314 | 367,578
Available for Sale Securities Tax Equivalent Yield | 1.98% | 2.04%
Small Business Administration Loan Pools |  |
Available-for-sale Securities, Amortized Cost Basis | 39,959 | 43,461
Available For Sale Debt Securities Gross Unrealized Gain | 1,031 | 1,394
Available-for-sale Securities Fair Value | 40,990 | 44,855
Available for Sale Securities Tax Equivalent Yield | 0.67% | 1.34%
US States and Political Subdivisions Debt Securities |  |
Available-for-sale Securities, Amortized Cost Basis | 123,030 | 122,113
Available For Sale Debt Securities Gross Unrealized Gain | 4,481 | 2,549
Available For Sale Debt Securities Gross Unrealized Loss | 644 | 1,938
Available-for-sale Securities Fair Value | 126,867 | 122,724
Available for Sale Securities Tax Equivalent Yield | 5.43% | 5.47%
Equity Securities |  |
Available-for-sale Securities, Amortized Cost Basis | 847 | 847
Available For Sale Debt Securities Gross Unrealized Gain | 2,118 | 2,022
Available-for-sale Securities Fair Value | $ 2,965 | $ 2,869

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 No definition available. + Details
Name: | fil_AvailableForSaleDebtSecuritiesGrossUnrealizedGain1
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities. + References No definition available. + Details
Name: | fil_AvailableForSaleDebtSecuritiesGrossUnrealizedLoss1
Namespace Prefix: | fil_
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 No definition available. + Details
Name: | fil_AvailableForSaleSecuritiesFairValue
Namespace Prefix: | fil_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | fil_AvailableForSaleSecuritiesTaxEquivalentYield
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 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 + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | instant