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Schedule of Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Dec. 31, 2020
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	$ 8,775	$ 6,467
Charge-offs	(64)	(220)
Recoveries	60	32
Provision for loan losses	500	1,200
Balance	9,271	7,479
Individually evaluated for loss			$ 492	$ 266
Collectively evaluated for loss			8,779	8,509
Total	9,271	7,479	9,271	8,775
Individually evaluated for loss			12,758	12,462
Collectively evaluated for loss			717,933	701,052
Loans and Leases Receivable, Gross, Total			730,691	713,514
One To Four Family Residential Real Estate Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	859	501
Charge-offs	(23)
Recoveries	1
Provision for loan losses	60	152
Balance	897	653
Individually evaluated for loss
Collectively evaluated for loss			897	859
Total	897	653	897	859
Individually evaluated for loss				914
Collectively evaluated for loss				157,070
Loans and Leases Receivable, Gross, Total				157,984
Construction and Land Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	181	271
Charge-offs		(100)
Recoveries	1
Provision for loan losses	4	54
Balance	186	225
Individually evaluated for loss
Collectively evaluated for loss			186	181
Total	186	225	186	181
Individually evaluated for loss			1,027	1,137
Collectively evaluated for loss			25,564	24,969
Loans and Leases Receivable, Gross, Total			26,591	26,106
Commercial Real Estate Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	2,482	1,386
Charge-offs
Recoveries
Provision for loan losses	775
Balance	3,257	1,628
Individually evaluated for loss			424	177
Collectively evaluated for loss			2,833	2,305
Total	3,257	1,628	3,257	2,482
Individually evaluated for loss			7,874	8,119
Collectively evaluated for loss			171,907	164,188
Loans and Leases Receivable, Gross, Total			179,781	172,307
Commercial Loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	2,388	1,815
Charge-offs		(33)
Recoveries	1	1
Provision for loan losses	(143)	642
Balance	2,246	2,425
Individually evaluated for loss			28	22
Collectively evaluated for loss			2,218	2,366
Total	2,246	2,425	2,246	2,388
Individually evaluated for loss			1,679	1,639
Collectively evaluated for loss			125,319	132,408
Loans and Leases Receivable, Gross, Total			126,998	134,047
Paycheck Protection Program Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance
Charge-offs
Recoveries
Provision for loan losses
Balance
Total
Loans and Leases Receivable, Gross, Total			117,297	100,084
Agriculture Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	2,690	2,347
Charge-offs
Recoveries
Provision for loan losses	(187)	34
Balance	2,503	2,381
Individually evaluated for loss			40	67
Collectively evaluated for loss			2,463	2,623
Total	2,503	2,381	2,503	2,690
Individually evaluated for loss			1,182	614
Collectively evaluated for loss			91,304	95,918
Loans and Leases Receivable, Gross, Total			92,486	96,532
Municipal Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	6	7
Charge-offs
Recoveries	6	6
Provision for loan losses	(6)	(6)
Balance	6	7
Individually evaluated for loss
Collectively evaluated for loss			6	6
Total	6	7	6	6
Individually evaluated for loss			36	36
Collectively evaluated for loss			2,147	2,296
Loans and Leases Receivable, Gross, Total			2,183	2,332
Consumer Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	169	140
Charge-offs	(41)	(87)
Recoveries	51	25
Provision for loan losses	(3)
Balance	176	160
Total	176	160	176	169
Commercial Real Estate Loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Provision for loan losses		242
Loans and Leases Receivable, Gross, Total			179,781	172,307
Consumer Loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	169
Provision for loan losses		$ 82
Balance	176
Individually evaluated for loss
Collectively evaluated for loss			176	169
Total	169		176	169
Individually evaluated for loss			4	3
Collectively evaluated for loss			25,553	24,119
Loans and Leases Receivable, Gross, Total			25,557	24,122
Paycheck Protection Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance
Balance
Individually evaluated for loss
Collectively evaluated for loss
Total
Individually evaluated for loss
Collectively evaluated for loss			117,297	100,084
Loans and Leases Receivable, Gross, Total			117,297	100,084
One To Four Family Residential Real Estate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	897
Total	$ 897		897
Individually evaluated for loss			956
Collectively evaluated for loss			158,842
Loans and Leases Receivable, Gross, Total			$ 159,798	$ 157,984

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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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