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Available for Sale Securities (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Summary of amortized cost and approximate fair values of securities
Amortized Cost	$ 95,645	$ 91,668
Gross Unrealized Gains	764	481
Gross Unrealized Losses	(607)	(1,180)
Fair Value	95,802	90,969
U.S. Treasury and Government agencies [Member]
Summary of amortized cost and approximate fair values of securities
Amortized Cost	18,128	18,597
Gross Unrealized Gains	219	187
Gross Unrealized Losses	(47)	(114)
Fair Value	18,300	18,670
Mortgage-backed securities [Member]
Summary of amortized cost and approximate fair values of securities
Amortized Cost	66,328	61,868
Gross Unrealized Gains	267	114
Gross Unrealized Losses	(550)	(1,039)
Fair Value	66,045	60,943
State and political subdivisions [Member]
Summary of amortized cost and approximate fair values of securities
Amortized Cost	11,189	11,203
Gross Unrealized Gains	278	180
Gross Unrealized Losses	(10)	(27)
Fair Value	$ 11,457	$ 11,356

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- References

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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.

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- Definition

Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

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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=82897076&loc=d3e27161-111563

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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=82897076&loc=d3e27161-111563

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