Securities - Schedule of Amortized Cost, Fair Value, and Corresponding Amounts of Gross Unrealized Gains and Losses for Available for Sale Securities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 90,599	$ 56,282
Gross Unrealized Gains	1,249	339
Gross Unrealized Losses	(57)	(72)
Securities available for sale, at fair value	91,791	56,549
U.S. Government Sponsored Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	1,000	5,000
Gross Unrealized Gains	5	2
Gross Unrealized Losses		(1)
Securities available for sale, at fair value	1,005	5,001
Mortgage-backed Securities, Residential
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	19,281	15,559
Gross Unrealized Gains	430	94
Gross Unrealized Losses	(7)	(12)
Securities available for sale, at fair value	19,704	15,641
Collateralized Mortgage Obligations, Residential
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	70,318	35,723
Gross Unrealized Gains	814	243
Gross Unrealized Losses	(50)	(59)
Securities available for sale, at fair value	$ 71,082	$ 35,907

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=121645371&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of unrealized loss 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
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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 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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-Section 45
-Paragraph 1
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