Loans and Allowance for Credit Losses - Balances in Allowance for loan losses and Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Allowance for credit losses:
Balance, beginning of year	$ 745	$ 706	$ 700	$ 675	$ 675
Provision charged to expense	68	(2)	113	29
Losses charged off		(11)		(11)	(194)
Balance, end of year	813	693	813	693	700
Loans:
Ending balance	106,246		106,246		96,905
Ending balance: individually evaluated	707		707		844
Unfunded loan commitments
Allowance for credit losses:
Balance, beginning of year	28	17	17	22	22
Provision charged to expense	(11)	9		4
Balance, end of year	17	26	17	26	17
Mortgage loans on real estate
Loans:
Ending balance	95,945		95,945		88,770
Ending balance: individually evaluated	707		707		844
Mortgage loans on real estate \| Residential 1-4 family
Allowance for credit losses:
Balance, beginning of year	266	256	271	247	247
Provision charged to expense	2	2	(3)	11
Balance, end of year	268	258	268	258	271
Loans:
Ending balance	66,000		66,000		65,721
Ending balance: individually evaluated	220		220		348
Mortgage loans on real estate \| Residential 1-4 family \| Unfunded loan commitments
Allowance for credit losses:
Balance, beginning of year	4	4	2	2	2
Provision charged to expense	(1)		1	2
Balance, end of year	3	4	3	4	2
Mortgage loans on real estate \| Commercial
Allowance for credit losses:
Balance, beginning of year	383	348	339	332	332
Provision charged to expense	43	(1)	87	15
Losses charged off					(179)
Balance, end of year	426	347	426	347	339
Loans:
Ending balance	28,587		28,587		21,412
Ending balance: individually evaluated	487		487		496
Mortgage loans on real estate \| Commercial \| Unfunded loan commitments
Allowance for credit losses:
Balance, beginning of year	21	7	7	10	10
Provision charged to expense	(16)	1	(2)	(2)
Balance, end of year	5	8	5	8	7
Mortgage loans on real estate \| Construction and Land Development
Allowance for credit losses:
Balance, beginning of year	11	11	13	15	15
Provision charged to expense	(1)	(3)	(3)	(7)
Balance, end of year	10	8	10	8	13
Loans:
Ending balance	1,358		1,358		1,637
Mortgage loans on real estate \| Construction and Land Development \| Unfunded loan commitments
Allowance for credit losses:
Balance, beginning of year		2	6	8	8
Provision charged to expense	6	9		3
Balance, end of year	6	11	6	11	6
Commercial loans
Allowance for credit losses:
Balance, beginning of year	66	75	60	65	65
Provision charged to expense	22	(2)	28	8
Losses charged off		(11)		(11)	(13)
Balance, end of year	88	62	88	62	60
Loans:
Ending balance	6,145		6,145		4,656
Commercial loans \| Unfunded loan commitments
Allowance for credit losses:
Balance, beginning of year	3	4	2	2	2
Provision charged to expense		(1)	1	1
Balance, end of year	3	3	3	3	2
Consumer
Allowance for credit losses:
Balance, beginning of year	19	16	17	16	16
Provision charged to expense	2	2	4	2
Losses charged off					(2)
Balance, end of year	21	$ 18	21	$ 18	17
Loans:
Ending balance	$ 4,156		$ 4,156		$ 3,479

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
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-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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- Definition

Amount of financing receivable individually evaluated for credit loss. Excludes financing receivable collectively evaluated for credit loss.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
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-Name Accounting Standards Codification
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