Investment Securities Available-for-sale securities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Available-for-sale Securities
Amortized Cost	$ 83,801	$ 74,698
Gross Unrealized Gains	1,677	233
Gross Unrealized Losses	(204)	(1,526)
Fair Value	85,274	73,405
US Government-sponsored enterprises [Member]
Available-for-sale Securities
Amortized Cost	6,610	6,528
Gross Unrealized Gains	60	1
Gross Unrealized Losses	(58)	(208)
Fair Value	6,612	6,321
Agency mortgage-backed [Member]
Available-for-sale Securities
Amortized Cost	46,403	36,851
Gross Unrealized Gains	687	84
Gross Unrealized Losses	(56)	(683)
Fair Value	47,034	36,252
State and political subdivisions [Member]
Available-for-sale Securities
Amortized Cost	22,987	23,527
Gross Unrealized Gains	547	130
Gross Unrealized Losses	(7)	(486)
Fair Value	23,527	23,171
Corporate [Member]
Available-for-sale Securities
Amortized Cost	7,801	7,792
Gross Unrealized Gains	383	18
Gross Unrealized Losses	(83)	(149)
Fair Value	$ 8,101	$ 7,661

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ 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 before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

No definition available.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26610-111562

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-Name Accounting Standards Codification
-Topic 320
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-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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