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Other Real Estate Owned and Repossessed Assets - Summary of Foreclosed Property Activity (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Other Real Estate [Abstract]
Beginning balance		$ 949	$ 1,078
Additions	[1]	1,981	293
Sales proceeds		(891)	(370)
Gross gains		401	38
Gross losses			(44)
Net gains (losses)		401	(6)
Impairment		(67)	(10)
Ending balance		$ 2,373	$ 985
[1] Additions to other real estate owned (“OREO”) include transfers from loans, transfers from closed Bank and ALC branches, and capitalized improvements to existing OREO properties.

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- Definition

Other real estate gross gains.

+ References

No definition available.

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Other real estate gross losses.

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- Definition

Other real estate net income loss.

+ References

No definition available.

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- Definition

The charge against earnings in the period to reduce the carrying amount of real property to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

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No definition available.

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- Definition

The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585

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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=123577603&loc=d3e5162-111524

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Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

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