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Schedule of Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	$ 7,747	$ 6,266	$ 6,467	$ 5,765
Charge-offs	(407)	(411)	(803)	(594)
Recoveries	26	24	102	108
Provision for loan losses	1,000	400	2,600	1,000
Balance	8,366	6,279	8,366	6,279
Individually evaluated for loss					$ 238	$ 733
Collectively evaluated for loss					8,128	5,734
Total	8,366	6,279	6,467	5,765	8,366	6,467
Individually evaluated for loss					10,560	8,680
Collectively evaluated for loss					728,752	529,712
Loans and Leases Receivable, Gross, Total					739,312	538,392
One To Four Family Residential Real Estate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	707	441	501	449
Charge-offs	(89)	(15)	(109)	(56)
Recoveries				1
Provision for loan losses	213	249	439	281
Balance	831	675	831	675
Individually evaluated for loss					213	129
Collectively evaluated for loss					618	372
Total	831	675	501	449	831	501
Individually evaluated for loss					1,259	1,256
Collectively evaluated for loss					161,085	145,249
Loans and Leases Receivable, Gross, Total					162,344	146,505
Construction and Land Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	273	255	271	168
Charge-offs	(91)	(31)	(191)	(31)
Recoveries
Provision for loan losses	22	(156)	124	(69)
Balance	204	68	204	68
Individually evaluated for loss						191
Collectively evaluated for loss					204	80
Total	204	68	271	168	204	271
Individually evaluated for loss					1,198	1,479
Collectively evaluated for loss					26,896	20,980
Loans and Leases Receivable, Gross, Total					28,094	22,459
Commercial Real Estate Loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	1,693	1,758	1,386	1,686
Charge-offs			(120)
Recoveries			13
Provision for loan losses	264	(326)	678	(254)
Balance	1,957	1,432	1,957	1,432
Individually evaluated for loss						103
Collectively evaluated for loss					1,957	1,283
Total	1,957	1,432	1,386	1,686	1,957	1,386
Individually evaluated for loss					4,929	3,461
Collectively evaluated for loss					149,875	130,040
Loans and Leases Receivable, Gross, Total					154,804	133,501
Commercial Loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	2,356	1,404	1,815	1,051
Charge-offs	(167)	(284)	(200)	(324)
Recoveries	1	1	3	52
Provision for loan losses	436	490	1,008	832
Balance	2,626	1,611	2,626	1,611
Individually evaluated for loss					25	204
Collectively evaluated for loss					2,601	1,611
Total	2,626	1,611	1,815	1,051	2,626	1,815
Individually evaluated for loss					2,055	1,298
Collectively evaluated for loss					135,231	108,314
Loans and Leases Receivable, Gross, Total					137,286	109,612
Agriculture Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	2,565	2,260	2,347	2,238
Charge-offs	(3)		(3)
Recoveries
Provision for loan losses	15	40	233	62
Balance	2,577	2,300	2,577	2,300
Individually evaluated for loss						106
Collectively evaluated for loss					2,577	2,241
Total	2,577	2,300	2,347	2,238	2,577	2,347
Individually evaluated for loss					1,059	1,124
Collectively evaluated for loss					98,371	97,434
Loans and Leases Receivable, Gross, Total					99,430	98,558
Municipal Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	6	7	7	7
Charge-offs
Recoveries			6	6
Provision for loan losses		(1)	(7)	(7)
Balance	6	6	6	6
Individually evaluated for loss
Collectively evaluated for loss					6	7
Total	6	6	7	7	6	7
Individually evaluated for loss					58	58
Collectively evaluated for loss					2,331	2,598
Loans and Leases Receivable, Gross, Total					2,389	2,656
Consumer Loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Balance	147	141	140	166
Charge-offs	(57)	(81)	(180)	(183)
Recoveries	25	23	80	49
Provision for loan losses	50	104	125	155
Balance	165	187	165	187
Individually evaluated for loss
Collectively evaluated for loss					165	140
Total	165	$ 187	140	$ 166	165	140
Individually evaluated for loss					2	4
Collectively evaluated for loss					23,986	25,097
Loans and Leases Receivable, Gross, Total					23,988	25,101
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					130,977
Loans and Leases Receivable, Gross, Total					$ 130,977

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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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