NOTE 5: INVESTMENT SECURITIES: Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Available-for-sale Securities
Available For Sale Securities Amortized Cost Amount	$ 273,539	$ 243,603
Available-for-sale Securities, Gross Unrealized Gain	5,772	2,950
Available-for-sale Securities, Gross Unrealized Loss	1,561	2,585
Available for Sale Securities Fair Value	$ 277,750	$ 243,968
Available for Sale Securities Tax Equivalent Yield	3.40%	3.29%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises
Available For Sale Securities Amortized Cost Amount	$ 178,170	$ 154,557
Available-for-sale Securities, Gross Unrealized Gain	3,587	1,272
Available-for-sale Securities, Gross Unrealized Loss	1,561	2,571
Available for Sale Securities Fair Value	$ 180,196	$ 153,258
Available for Sale Securities Tax Equivalent Yield	3.05%	2.83%
Collateralized Mortgage Obligations
Available For Sale Securities Amortized Cost Amount	$ 52,414	$ 39,024
Available-for-sale Securities, Gross Unrealized Gain	592	250
Available-for-sale Securities, Gross Unrealized Loss	0	14
Available for Sale Securities Fair Value	$ 53,006	$ 39,260
Available for Sale Securities Tax Equivalent Yield	3.31%	3.18%
US States and Political Subdivisions Debt Securities
Available For Sale Securities Amortized Cost Amount	$ 42,955	$ 50,022
Available-for-sale Securities, Gross Unrealized Gain	1,593	1,428
Available-for-sale Securities, Gross Unrealized Loss	0	0
Available for Sale Securities Fair Value	$ 44,548	$ 51,450
Available for Sale Securities Tax Equivalent Yield	4.92%	4.81%

Represents the monetary amount of Available for Sale Securities Fair Value, as of the indicated date.

No definition available.

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- Definition

Represents the Available for Sale Securities Tax Equivalent Yield, as of the indicated date.

+ References

No definition available.

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- 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

No definition available.

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- Definition

Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563

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- Definition

Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563

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