Loans and Allowance for Credit Losses - Loans - Schedule of ACL Loans by Portfolio Segment (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
Apr. 30, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		$ 37,615	$ 35,288	$ 35,514	$ 34,187	$ 34,187
PCD Loans		0		343
Charge offs		(131)	(364)	(1,055)	(476)
Recoveries		40	17	156	67
Net Loans (Charged off) Recovered		(91)	(347)	(899)	(409)
Provision/(Benefit) for credit losses		(187)	621	2,379	1,784
Allowance for loan losses, ending balance		37,337	35,562	37,337	35,562	35,514
William Penn Acquisition
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Provision expense	$ 2,300
Commercial real estate \| CRE Nonowner Occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		10,598	10,647	11,047	10,267	10,267
PCD Loans		0		89
Charge offs		0	0	(691)	0	0
Recoveries		9	0	11	0	2
Net Loans (Charged off) Recovered		9	0	(680)	0
Provision/(Benefit) for credit losses		(207)	387	(56)	767
Allowance for loan losses, ending balance		10,400	11,034	10,400	11,034	11,047
Commercial real estate \| CRE Owner Occupied
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		6,430	5,830	5,243	5,646	5,646
PCD Loans		0		100
Charge offs		0	0	0	0	0
Recoveries		0	0	0	4	4
Net Loans (Charged off) Recovered		0	0	0	4
Provision/(Benefit) for credit losses		(18)	(607)	1,069	(427)
Allowance for loan losses, ending balance		6,412	5,223	6,412	5,223	5,243
Commercial real estate \| Multifamily
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		1,978	3,209	3,432	2,202	2,202
PCD Loans		0		31
Charge offs		0	0	0	0	0
Recoveries		0	0	0	0	0
Net Loans (Charged off) Recovered		0	0	0	0
Provision/(Benefit) for credit losses		171	349	(1,314)	1,356
Allowance for loan losses, ending balance		2,149	3,558	2,149	3,558	3,432
Commercial real estate \| Farmland
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		2,098	2,059	1,932	2,064	2,064
PCD Loans		0		0
Charge offs		0	0	0	0	0
Recoveries		0	0	0	0	0
Net Loans (Charged off) Recovered		0	0	0	0
Provision/(Benefit) for credit losses		(184)	(294)	(18)	(299)
Allowance for loan losses, ending balance		1,914	1,765	1,914	1,765	1,932
Commercial and industrial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		8,102	6,934	7,122	7,131	7,131
PCD Loans		0		36
Charge offs		(91)	(356)	(294)	(412)	(819)
Recoveries		0	0	9	0	1
Net Loans (Charged off) Recovered		(91)	(356)	(285)	(412)
Provision/(Benefit) for credit losses		1,355	253	2,493	112
Allowance for loan losses, ending balance		9,366	6,831	9,366	6,831	7,122
Construction \| Residential Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		958	1,129	931	1,256	1,256
PCD Loans		0		0
Charge offs		0	0	0	0	0
Recoveries		0	0	0	0	0
Net Loans (Charged off) Recovered		0	0	0	0
Provision/(Benefit) for credit losses		(403)	(102)	(376)	(229)
Allowance for loan losses, ending balance		555	1,027	555	1,027	931
Construction \| Other Construction
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		2,436	2,013	2,131	2,146	2,146
PCD Loans		0		0
Charge offs		0	0	0	0	0
Recoveries		0	0	0	0	0
Net Loans (Charged off) Recovered		0	0	0	0
Provision/(Benefit) for credit losses		(1,283)	426	(978)	293
Allowance for loan losses, ending balance		1,153	2,439	1,153	2,439	2,131
Residential mortgage \| 1-4 Family 1st Lien
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		2,196	1,349	1,503	1,207	1,207
PCD Loans		0		37
Charge offs		0	0	0	(7)	(7)
Recoveries		3	2	88	9	16
Net Loans (Charged off) Recovered		3	2	88	2
Provision/(Benefit) for credit losses		292	156	863	298
Allowance for loan losses, ending balance		2,491	1,507	2,491	1,507	1,503
Residential mortgage \| 1-4 Family Rental
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		2,258	1,704	1,756	1,859	1,859
PCD Loans		0		47
Charge offs		0	0	0	(2)	(2)
Recoveries		0	0	0	22	22
Net Loans (Charged off) Recovered		0	0	0	20
Provision/(Benefit) for credit losses		52	68	507	(107)
Allowance for loan losses, ending balance		2,310	1,772	2,310	1,772	1,756
Residential mortgage \| HELOC and Junior Liens
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		520	397	392	389	389
PCD Loans		0		3
Charge offs		0	0	0	(21)	(21)
Recoveries		0	0	0	0	0
Net Loans (Charged off) Recovered		0	0	0	(21)
Provision/(Benefit) for credit losses		44	(9)	169	20
Allowance for loan losses, ending balance		564	388	564	388	392
Consumer
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for loan losses, beginning balance		41	17	25	20	20
PCD Loans		0		0
Charge offs		(40)	(8)	(70)	(34)	(52)
Recoveries		28	15	48	32	39
Net Loans (Charged off) Recovered		(12)	7	(22)	(2)
Provision/(Benefit) for credit losses		(6)	(6)	20	0
Allowance for loan losses, ending balance		$ 23	$ 18	$ 23	$ 18	$ 25

Financing Receivable, Purchased with Credit Deterioration, Provision Expense

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

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Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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

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

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

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Amount, excluding accrued interest, of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration. Excludes net investment in lease.

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