Loans Receivable and the Allowance for Loan Losses - Schedule of analysis of the activity in the allowance for loan losses (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Allowance for loan losses:
Ending balance	$ 5,242	$ 5,088	$ 4,611
Ending balance: collectively evaluated for impairment	5,242	5,088
Ending balance	972,851	824,708
Ending balance: individually evaluated for impairment	1,622	6,470
Ending balance: collectively evaluated for impairment	971,229	818,238
Residential real estate
Allowance for loan losses:
Ending balance	571	707	605
Ending balance: collectively evaluated for impairment	571	707
Ending balance	120,358	127,184
Ending balance: individually evaluated for impairment	876	2,009
Ending balance: collectively evaluated for impairment	119,482	125,175
Non-residential real estate
Allowance for loan losses:
Ending balance	381	519	503
Ending balance: collectively evaluated for impairment	381	519
Ending balance	50,016	60,665
Ending balance: individually evaluated for impairment	746	4,461
Ending balance: collectively evaluated for impairment	49,270	56,204
Construction
Allowance for loan losses:
Ending balance	3,143	3,068	2,692
Ending balance: collectively evaluated for impairment	3,143	3,068
Ending balance	683,830	545,788
Ending balance: collectively evaluated for impairment	683,830	545,788
Commercial and industrial
Allowance for loan losses:
Ending balance	973	774	566
Ending balance: collectively evaluated for impairment	973	774
Ending balance	118,378	90,577
Ending balance: collectively evaluated for impairment	118,378	90,577
Consumer
Allowance for loan losses:
Ending balance	10	20	71
Ending balance: collectively evaluated for impairment	10	20
Ending balance	269	494
Ending balance: collectively evaluated for impairment	269	$ 494
Unallocated
Allowance for loan losses:
Ending balance	164		$ 174
Ending balance: collectively evaluated for impairment	$ 164

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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- Definition

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

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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- Definition

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.

+ References

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Amount, before allowance and fees, of loans and leases receivable. Excludes loans and leases covered under loss sharing agreements.

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