Composition of loans receivable by risk rating grade (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Pass [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Residential 1-4 family	$ 367,225	$ 342,243
Residential 5+ multifamily	50,588	35,272
Construction of residential 1-4 family	19,738	8,814
Home equity lines of credit	23,037	27,393
Residential real estate	460,588	413,722
Commercial	271,821	276,866
Construction of commercial	58,838	31,493
Commercial real estate	330,659	308,359
Farm land	1,162	1,612
Vacant land	14,143	13,992
Real estate secured	806,552	737,685
Commercial and industrial	191,857	224,906
Municipal	16,534	21,512
Consumer	12,547	7,660
Loans receivable, gross	1,027,490	991,763
Special Mention [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Residential 1-4 family	3,543	5,615
Residential 5+ multifamily	79	90
Construction of residential 1-4 family
Home equity lines of credit	212	257
Residential real estate	3,834	5,962
Commercial	16,034	15,565
Construction of commercial
Commercial real estate	16,034	15,565
Farm land	1,214
Vacant land	39	50
Real estate secured	21,121	21,577
Commercial and industrial	688	1,271
Municipal
Consumer
Loans receivable, gross	21,809	22,848
Substandard [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Residential 1-4 family	2,363	4,143
Residential 5+ multifamily	1,658	1,696
Construction of residential 1-4 family
Home equity lines of credit	21	154
Residential real estate	4,042	5,993
Commercial	23,068	18,410
Construction of commercial		229
Commercial real estate	23,068	18,639
Farm land	431	1,586
Vacant land		37
Real estate secured	27,541	26,255
Commercial and industrial	2,587	632
Municipal
Consumer		27
Loans receivable, gross	30,128	26,914
Doubtful [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured
Commercial and industrial		339
Municipal
Consumer
Loans receivable, gross		339
Unlikely to be Collected Financing Receivable [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit
Residential real estate
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured
Commercial and industrial
Municipal
Consumer
Loans receivable, gross
Nonperforming Financial Instruments [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Residential 1-4 family	373,131	352,001
Residential 5+ multifamily	52,325	37,058
Construction of residential 1-4 family	19,738	8,814
Home equity lines of credit	23,270	27,804
Residential real estate	468,464	425,677
Commercial	310,923	310,841
Construction of commercial	58,838	31,722
Commercial real estate	369,761	342,563
Farm land	2,807	3,198
Vacant land	14,182	14,079
Real estate secured	855,214	785,517
Commercial and industrial	195,132	227,148
Municipal	16,534	21,512
Consumer	12,547	7,687
Loans receivable, gross	$ 1,079,427	$ 1,041,864

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The fair value as of the balance sheet date of firm holdings in fixed income obligations issued by state and local governments and authorities. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

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The net carrying amount as of the balance sheet date of the sum of the various components of an operative builder's inventory, including finished homes. Operative builders primarily consist of entities that develop land, construct residential homes and commercial and industrial buildings thereon, and sell them to home buyers and operators of the commercial and industrial properties.

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Total of (1) improvements, (2) held-for-sale, (3) land and land under development, (4) construction-in-process, (5) mortgage loans held-in-inventory, and (6) other real estate investments which are considered inventory due to being held for sale or disposition.

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Cost of real estate projects incurred for projects for eventual sale or transfer (condominium or time share projects, vacation clubs).

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Carrying amount as of the balance sheet date, net of valuation allowances and impairment losses, of costs of land expected to be developed in the near term plus capitalized costs of development, for purposes of selling completed units to home buyers or commercial or industrial entities..

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Represents mortgage loans held in inventory primarily for sale to others (third parties, businesses, legal entities) in the ordinary course of business.

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Amount of investment in certain other real estate investments not specifically identified elsewhere in the existing taxonomy.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

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