Securities - Amortized cost to fair value (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	$ 290,087	$ 272,558
Unrealized Gain	249	1,087
Unrealized Loss	(10,818)	(4,686)
Allowance for Credit Losses	0	0
Fair Value	279,518	268,959
U.S. Treasury securities
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	93,869	95,479
Unrealized Gain		407
Unrealized Loss	(1,270)	(103)
Allowance for Credit Losses	0	0
Fair Value	92,599	95,783
U.S. Government agencies
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	4,694	9,159
Unrealized Gain		53
Unrealized Loss	(141)
Allowance for Credit Losses	0	0
Fair Value	4,553	9,212
Agency mortgage-backed securities
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	112,129	69,682
Unrealized Gain		162
Unrealized Loss	(6,235)	(1,253)
Allowance for Credit Losses	0	0
Fair Value	105,894	68,591
Agency collateralized mortgage obligations
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	12,933	12,109
Unrealized Gain	137	202
Unrealized Loss	(506)	(74)
Allowance for Credit Losses	0	0
Fair Value	12,564	12,237
Corporate bonds
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	58,745	72,703
Unrealized Gain	112	263
Unrealized Loss	(2,467)	(3,081)
Allowance for Credit Losses	0	0
Fair Value	56,390	69,885
Municipal obligations
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	2,000	6,596
Unrealized Loss	(40)	(72)
Allowance for Credit Losses	0	0
Fair Value	1,960	6,524
SBA securities
Amortized cost and estimated fair values of securities classified as Available-for-Sale
Amortized Cost	5,717	6,830
Unrealized Loss	(159)	(103)
Allowance for Credit Losses	0	0
Fair Value	$ 5,558	$ 6,727

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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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
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Amount excluding accrued interest, of allowance for credit loss 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 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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
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-Publisher FASB
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