Loans and Allowance for Loan Losses - Schedule of Allowance for Loan Losses and Recorded Investment in Loans (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Allowance for loan losses:
Beginning Balance	$ 5,113	$ 2,231
Provision (Credit) for Loan Losses	(205)	563
Losses charged off	(113)	(109)
Recoveries	12	23
Ending Balance	4,807	2,708
Allocation:
Ending balance: individually evaluated for impairment	85	16	$ 1
Ending balance: collectively evaluated for impairment	4,722	2,692	5,112
Loans:
Ending balance: individually evaluated for impairment	2,708	1,401	376
Ending balance: collectively evaluated for impairment	447,326	446,936	443,115
Commercial loans
Allowance for loan losses:
Beginning Balance	1,397	568
Provision (Credit) for Loan Losses	(98)	529
Losses charged off	(78)	(42)
Recoveries	0	0
Ending Balance	1,221	1,055
Allocation:
Ending balance: individually evaluated for impairment	0	16
Ending balance: collectively evaluated for impairment	1,221	1,039	1,397
Loans:
Ending balance: individually evaluated for impairment	0	138	80
Ending balance: collectively evaluated for impairment	99,728	106,338	103,197
Commercial real estate
Allowance for loan losses:
Beginning Balance	1,821	792
Provision (Credit) for Loan Losses	(1)	19
Losses charged off	0	(30)
Recoveries	0	0
Ending Balance	1,820	781
Allocation:
Ending balance: individually evaluated for impairment	85	0	1
Ending balance: collectively evaluated for impairment	1,735	781	1,820
Loans:
Ending balance: individually evaluated for impairment	2,594	758	182
Ending balance: collectively evaluated for impairment	251,983	251,593	245,985
Residential real estate
Allowance for loan losses:
Beginning Balance	1,471	572
Provision (Credit) for Loan Losses	(75)	1
Losses charged off	(17)	(6)
Recoveries	2	0
Ending Balance	1,381	567
Allocation:
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	1,381	567	1,471
Loans:
Ending balance: individually evaluated for impairment	114	505	114
Ending balance: collectively evaluated for impairment	88,000	79,646	85,675
Installment
Allowance for loan losses:
Beginning Balance	424	299
Provision (Credit) for Loan Losses	(31)	14
Losses charged off	(18)	(31)
Recoveries	10	23
Ending Balance	385	305
Allocation:
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	385	305	424
Loans:
Ending balance: individually evaluated for impairment	0	0
Ending balance: collectively evaluated for impairment	$ 7,615	$ 9,359	$ 8,258

Financing Receivable Additional Information [Abstract]

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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