Available for Sale Securities (Contractual Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Due in one year or less, amortized cost	$ 1,297
Due in one year or less, fair value	1,306
Due after one year through 5 years, amortized cost	2,843
Due after one year through 5 years, fair value	2,890
Due after 5 years through 10 years, amortized cost	4,395
Due after 5 years through 10 years, fair value	4,418
Due after 10 years, amortized cost	4,079
Due after 10 years, fair value	4,083
Subtotal, amortized cost	12,614
Subtotal, fair value	12,697
Amortized cost	47,709	$ 44,564
Estimated fair value	48,179	43,751
Collateralized Mortgage Backed Securities [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized cost	35,095	29,164
Estimated fair value	$ 35,482	$ 28,536

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

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