Composition of loans receivable by delinquency status (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Loans Receivable Delinquency Status Current [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family	$ 398,234	$ 372,620
Residential 5+ multifamily	69,272	51,464
Construction of residential 1-4 family	22,310	19,668
Home equity lines of credit	23,437	23,000
Residential real estate	513,253	466,752
Commercial	338,006	310,331
Construction of commercial	49,696	58,838
Commercial real estate	387,702	369,169
Farm land	3,668	2,807
Vacant land	15,397	14,182
Real estate secured	920,020	852,910
Commercial and industrial	191,780	194,838
Municipal	17,486	16,534
Consumer	18,061	12,503
Loans receivable, gross	1,147,347	1,076,785
Loans Receivable Delinquency Status Period Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family	152	223
Residential 5+ multifamily
Construction of residential 1-4 family
Home equity lines of credit	326	165
Residential real estate	478	388
Commercial		87
Construction of commercial
Commercial real estate		87
Farm land
Vacant land
Real estate secured	478	475
Commercial and industrial	189	250
Municipal
Consumer	87	40
Loans receivable, gross	754	765
Loans Receivable Delinquency Status Period Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family	155	135
Residential 5+ multifamily
Construction of residential 1-4 family		70
Home equity lines of credit		98
Residential real estate	155	303
Commercial	85	251
Construction of commercial
Commercial real estate	85	251
Farm land
Vacant land
Real estate secured	240	554
Commercial and industrial		32
Municipal
Consumer	7	4
Loans receivable, gross	247	590
Loans Receivable Delinquency Status Period Four [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family		63
Residential 5+ multifamily
Construction of residential 1-4 family	69
Home equity lines of credit
Residential real estate	69	63
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured	69	63
Commercial and industrial		1
Municipal
Consumer
Loans receivable, gross	69	64
Loans Receivable Delinquency Status Period Five [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family	15	90
Residential 5+ multifamily		861
Construction of residential 1-4 family
Home equity lines of credit		7
Residential real estate	15	958
Commercial		254
Construction of commercial
Commercial real estate		254
Farm land
Vacant land
Real estate secured	15	1,212
Commercial and industrial	11	11
Municipal
Consumer
Loans receivable, gross	26	1,223
Loans Receivable Delinquency Status Period Six [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family	322	511
Residential 5+ multifamily		861
Construction of residential 1-4 family	69	70
Home equity lines of credit	326	270
Residential real estate	717	1,712
Commercial	85	592
Construction of commercial
Commercial real estate	85	592
Farm land
Vacant land
Real estate secured	802	2,304
Commercial and industrial	200	294
Municipal
Consumer	94	44
Loans receivable, gross	1,096	2,642
Loans Receivable Delinquency Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family
Residential 5+ multifamily
Construction of residential 1-4 family	69
Home equity lines of credit
Residential real estate	69
Commercial
Construction of commercial
Commercial real estate
Farm land
Vacant land
Real estate secured	69
Commercial and industrial	11	11
Municipal
Consumer
Loans receivable, gross	80	11
Loans Receivable Delinquency Non Accrual [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Residential 1-4 family	350	750
Residential 5+ multifamily		861
Construction of residential 1-4 family	2,100
Home equity lines of credit		21
Residential real estate	2,450	1,632
Commercial	1,228	1,924
Construction of commercial
Commercial real estate	1,228	1,924
Farm land	409	432
Vacant land
Real estate secured	4,087	3,988
Commercial and industrial	62	200
Municipal
Consumer
Loans receivable, gross	$ 4,149	$ 4,188

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

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