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2. Investment Securities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Investment securities available for sale
Amortized cost	$ 184,038	$ 193,296
Estimated fair value	188,972	194,578
Mortgage-backed securities
Investment securities available for sale
Amortized cost	57,988	52,145
Gross unrealized gains	1,301	516
Gross unrealized losses	170	558
Estimated fair value	59,119	52,103
U.S. Government sponsored enterprises
Investment securities available for sale
Amortized cost	33,211	35,356
Gross unrealized gains	670	71
Gross unrealized losses	407	793
Estimated fair value	33,474	34,634
State and political subdivisions
Investment securities available for sale
Amortized cost	92,589	105,545
Gross unrealized gains	3,540	2,089
Gross unrealized losses	0	43
Estimated fair value	96,129	107,591
Trust preferred securities
Investment securities available for sale
Amortized cost	250	250
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	250	250
Total
Investment securities available for sale
Amortized cost	184,038	193,296
Gross unrealized gains	5,511	2,676
Gross unrealized losses	577	1,394
Estimated fair value	$ 188,972	$ 194,578

X

- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ 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

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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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