Available for Sale Securities (Amortized Cost and Fair Value) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 47,709	$ 44,564
Gross unrealized gains	590	52
Gross unrealized losses	(120)	(865)
Estimated fair value	48,179	43,751
US Government Corporations and Agencies Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	944	1,299
Gross unrealized gains	14	8
Estimated fair value	958	1,307
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	8,590	8,381
Gross unrealized gains	36	17
Gross unrealized losses	(21)	(103)
Estimated fair value	8,605	8,295
Collateralized Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	35,095	29,164
Gross unrealized gains	486	24
Gross unrealized losses	(99)	(652)
Estimated fair value	35,482	28,536
Certificates of Deposit [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	1,000	1,500
Gross unrealized gains	17	1
Gross unrealized losses		(55)
Estimated fair value	1,017	1,446
Corporate Debt Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	2,080	4,220
Gross unrealized gains	37	2
Gross unrealized losses		(55)
Estimated fair value	$ 2,117	$ 4,167

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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 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://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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Amortized cost 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 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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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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