Loans and Allowance for Credit Losses - Loans - Allowance by Loan Segment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	$ 2,162,000	$ 2,470,000
Charged off	(203,000)	(392,000)
Charge-offs	(203,000)	(392,000)
Recoveries	102,000	196,000
(Release) provision for credit losses	96,000	(112,000)
Balance, end of year	2,157,000	2,162,000
Individually evaluated for impairment:
Individually evaluated for impairment, Balance in allowance	200,000	79,000
Individually evaluated for impairment, Related loan balance	329,000	334,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	1,957,000	2,083,000
Collectively evaluated for impairment, Related loan balance	175,978,000	186,106,000
Real Estate Loan
Individually evaluated for impairment:
Individually evaluated for impairment, Balance in allowance	21,000	20,000
Commercial and Industrial
Individually evaluated for impairment:
Individually evaluated for impairment, Balance in allowance	179,000	59,000
Construction and Land | Real Estate Loan
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	44,000	5,000
(Release) provision for credit losses	(13,000)	39,000
Balance, end of year	31,000	44,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	31,000	44,000
Collectively evaluated for impairment, Related loan balance	4,636,000	4,499,000
Farmland | Real Estate Loan
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	20,000	11,000
(Release) provision for credit losses	(2,000)	9,000
Balance, end of year	18,000	20,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	18,000	20,000
Collectively evaluated for impairment, Related loan balance	325,000	333,000
Single-family Residential | Real Estate Loan
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	1,230,000	1,357,000
(Release) provision for credit losses	60,000	(127,000)
Balance, end of year	1,290,000	1,230,000
Individually evaluated for impairment:
Individually evaluated for impairment, Balance in allowance	21,000	20,000
Individually evaluated for impairment, Related loan balance	30,000	34,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	1,269,000	1,210,000
Collectively evaluated for impairment, Related loan balance	86,857,000	80,217,000
Multi-family | Real Estate Loan
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	103,000	105,000
(Release) provision for credit losses	(7,000)	(2,000)
Balance, end of year	96,000	103,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	96,000	103,000
Collectively evaluated for impairment, Related loan balance	5,165,000	5,304,000
Commercial and Industrial | Commercial and Industrial
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	174,000	115,000
Charge-offs		(200,000)
(Release) provision for credit losses	130,000	259,000
Balance, end of year	304,000	174,000
Individually evaluated for impairment:
Individually evaluated for impairment, Balance in allowance	179,000	59,000
Individually evaluated for impairment, Related loan balance	299,000	300,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	125,000	115,000
Collectively evaluated for impairment, Related loan balance	10,551,000	8,690,000
Commercial | Real Estate Loan
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	221,000	278,000
(Release) provision for credit losses	(31,000)	(57,000)
Balance, end of year	190,000	221,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	190,000	221,000
Collectively evaluated for impairment, Related loan balance	39,217,000	42,936,000
SBA Guaranty | Commercial and Industrial
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	22,000	30,000
Charge-offs		(9,000)
(Release) provision for credit losses	(1,000)	1,000
Balance, end of year	21,000	22,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	21,000	22,000
Collectively evaluated for impairment, Related loan balance	5,924,000	6,158,000
Consumer | Consumer Loans
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	23,000	36,000
Charged off	(79,000)
Charge-offs	(79,000)	(14,000)
Recoveries	1,000	8,000
(Release) provision for credit losses	85,000	(7,000)
Balance, end of year	30,000	23,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	30,000	23,000
Collectively evaluated for impairment, Related loan balance	2,039,000	1,521,000
Automobile | Consumer Loans
Financing Receivable, Allowance for Credit Losses
Balance, beginning of year	325,000	533,000
Charged off	(124,000)
Charge-offs	(124,000)	(169,000)
Recoveries	101,000	188,000
(Release) provision for credit losses	(125,000)	(227,000)
Balance, end of year	177,000	325,000
Collectively evaluated for impairment:
Collectively evaluated for impairment, Balance in allowance	177,000	325,000
Collectively evaluated for impairment, Related loan balance	$ 21,264,000	$ 36,448,000