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Note 12: Business Combinations: Business Combinations Policy (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2018
Business Acquisition, Name of Acquired Entity |  |  | Gideon Bancshares Company (“Gideon”), and its wholly owned subsidiary, First Commercial Bank (“First Commercial”) |  |
Noninterest Expense | $ 12,552 | $ 10,519 | $ 24,000 | $ 21,273 |
Noninterest Expense | 12,552 | $ 10,519 | 24,000 | $ 21,273 |
Gideon Bancshares Company |  |  |  |  |
Business Combination, Acquisition Related Costs | 629 |  |  |  |
Noninterest Expense | 420 |  | 554 |  | $ 75
Noninterest Expense | $ 420 |  | $ 554 |  | $ 75

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- Definition Name of the acquired entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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- Definition Total aggregate amount of all noninterest expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 + Details
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Balance Type: | debit
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- Details
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Balance Type: |
Period Type: |