Investment Securities - Amortized Cost and Fair Value - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Securities Available-for-Sale
Amortized cost, available for sale	$ 136,326	$ 143,841
Gross unrealized gains	125
Gross unrealized (losses)	(10,953)	(13,584)
Available-for-sale, fair value	125,498	130,257
Past Due
Securities Available-for-Sale
Available-for-sale, fair value	0	0
U.S. Treasuries
Securities Available-for-Sale
Amortized cost, available for sale	20,215	27,920
Gross unrealized (losses)	(401)	(783)
Available-for-sale, fair value	19,814	27,137
U.S. government and federal agencies
Securities Available-for-Sale
Amortized cost, available for sale	6,983	10,966
Gross unrealized (losses)	(232)	(385)
Available-for-sale, fair value	6,751	10,581
Corporate bonds
Securities Available-for-Sale
Amortized cost, available for sale	3,000	3,000
Gross unrealized (losses)	(223)	(261)
Available-for-sale, fair value	2,777	2,739
U.S. agency collateralized mortgage obligations
Securities Available-for-Sale
Amortized cost, available for sale	35,339	36,032
Gross unrealized gains	5
Gross unrealized (losses)	(5,784)	(6,421)
Available-for-sale, fair value	29,560	29,611
Tax-exempt municipal
Securities Available-for-Sale
Amortized cost, available for sale	1,378	1,379
Gross unrealized (losses)	(203)	(208)
Available-for-sale, fair value	1,175	1,171
Taxable municipal
Securities Available-for-Sale
Amortized cost, available for sale	270	270
Gross unrealized (losses)	(2)	(7)
Available-for-sale, fair value	268	263
U.S. agency mortgage-backed
Securities Available-for-Sale
Amortized cost, available for sale	69,141	64,274
Gross unrealized gains	120
Gross unrealized (losses)	(4,108)	(5,519)
Available-for-sale, fair value	$ 65,153	$ 58,755

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 30
-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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