Schedule of Allowance for Credit Losses on Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	$ 9,163	$ 7,747	$ 8,775	$ 6,467
Charge-offs	(615)	(407)	(907)	(803)
Recoveries	218	26	398	102
Provision for loan losses		1,000	500	2,600
Balance	8,766	8,366	8,766	8,366
Individually evaluated for loss	693		693		$ 266
Collectively evaluated for loss	8,073		8,073		8,509
Total	8,766	8,366	8,766	8,366	8,775
Individually evaluated for loss	11,471		11,471		12,462
Collectively evaluated for loss	653,267		653,267		701,052
Loans and Leases Receivable, Gross, Total	664,738		664,738		713,514
One To Four Family Residential Real Estate Loans [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	725	707	859	501
Charge-offs		(89)	(81)	(109)
Recoveries	8		10
Provision for loan losses	(89)	213	(144)	439
Balance	644	831	644	831
Individually evaluated for loss
Collectively evaluated for loss	644		644		859
Total	644	831	644	831	859
Individually evaluated for loss	917		917		914
Collectively evaluated for loss	160,203		160,203		157,070
Loans and Leases Receivable, Gross, Total	161,120		161,120		157,984
Construction and Land Loans [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	131	273	181	271
Charge-offs		(91)		(191)
Recoveries	120		221
Provision for loan losses	(117)	22	(268)	124
Balance	134	204	134	204
Individually evaluated for loss
Collectively evaluated for loss	134		134		181
Total	134	204	134	204	181
Individually evaluated for loss	919		919		1,137
Collectively evaluated for loss	25,739		25,739		24,969
Loans and Leases Receivable, Gross, Total	26,658		26,658		26,106
Commercial Real Estate Loans [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	3,412	1,693	2,482	1,386
Charge-offs	(540)		(540)	(120)
Recoveries				13
Provision for loan losses	25	264	955	678
Balance	2,897	1,957	2,897	1,957
Individually evaluated for loss	45		45		177
Collectively evaluated for loss	2,852		2,852		2,305
Total	2,897	1,957	2,897	1,957	2,482
Individually evaluated for loss	6,124		6,124		8,119
Collectively evaluated for loss	187,331		187,331		164,188
Loans and Leases Receivable, Gross, Total	193,455		193,455		172,307
Commercial Loan [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	2,588	2,356	2,388	1,815
Charge-offs		(167)	(72)	(200)
Recoveries	11	1	13	3
Provision for loan losses	18	436	288	1,008
Balance	2,617	2,626	2,617	2,626
Individually evaluated for loss	505		505		22
Collectively evaluated for loss	2,112		2,112		2,366
Total	2,617	2,626	2,617	2,626	2,388
Individually evaluated for loss	1,086		1,086		1,639
Collectively evaluated for loss	134,704		134,704		132,408
Loans and Leases Receivable, Gross, Total	135,790		135,790		134,047
Paycheck Protection Program Loans [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance
Charge-offs
Recoveries
Provision for loan losses
Balance
Individually evaluated for loss
Collectively evaluated for loss
Total
Individually evaluated for loss
Collectively evaluated for loss	28,671		28,671		100,084
Loans and Leases Receivable, Gross, Total	28,671		28,671		100,084
Agriculture Loans [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	2,156	2,565	2,690	2,347
Charge-offs		(3)	(50)	(3)
Recoveries	50		50
Provision for loan losses	117	15	(367)	233
Balance	2,323	2,577	2,323	2,577
Individually evaluated for loss	143		143		67
Collectively evaluated for loss	2,180		2,180		2,623
Total	2,323	2,577	2,323	2,577	2,690
Individually evaluated for loss	2,387		2,387		614
Collectively evaluated for loss	88,918		88,918		95,918
Loans and Leases Receivable, Gross, Total	91,305		91,305		96,532
Municipal Loans [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	5	6	6	7
Charge-offs
Recoveries			6	6
Provision for loan losses			(7)	(7)
Balance	5	6	5	6
Individually evaluated for loss
Collectively evaluated for loss	5		5		6
Total	5	6	5	6	6
Individually evaluated for loss	36		36		36
Collectively evaluated for loss	2,079		2,079		2,296
Loans and Leases Receivable, Gross, Total	2,115		2,115		2,332
Consumer Loans [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Line Items]
Balance	146	147	169	140
Charge-offs	(75)	(57)	(164)	(180)
Recoveries	29	25	98	80
Provision for loan losses	46	50	43	125
Balance	146	165	146	165
Individually evaluated for loss
Collectively evaluated for loss	146		146		169
Total	146	$ 165	146	$ 165	169
Individually evaluated for loss	2		2		3
Collectively evaluated for loss	25,622		25,622		24,119
Loans and Leases Receivable, Gross, Total	$ 25,624		$ 25,624		$ 24,122