Fair value of financial instruments (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025 USD ($) security	Jun. 30, 2025 USD ($) security	Dec. 31, 2024 USD ($) property Office
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Aggregate amortized cost	$ 546,709	$ 546,709	$ 575,288
Available for sale, Fair Value	505,181	505,181	526,329
Fair value of assets transfers into level 3	0	0
Fair value of assets transfers out of level 3	0	0
Fair value of liabilities transfers into level 3	0	0
Fair value of liabilities transfers out of level 3	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale, Fair Value	1,923	1,923	4,622
Level 3 \| Other Assets.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other real estate owned	$ 711	$ 711	738
Level 3 \| Residential real estate property \| Other Assets.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other real estate owned			$ 27
Number of residential real estate properties \| property			1
Level 3 \| Former community banking office \| Other Assets.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Other real estate owned			$ 711
Number of former community banking office properties \| Office			1
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Corporate debt securities \| security	26	26
Aggregate amortized cost	$ 24,525	$ 24,525	$ 31,442
Available for sale, Fair Value	$ 24,441	$ 24,441	$ 31,621
Corporate debt securities \| Market Not Active
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Corporate debt securities \| security	2	2
Aggregate amortized cost	$ 1,700	$ 1,700
Available for sale, Fair Value	$ 1,900	$ 1,900

The number of corporate debt securities owned by the company.

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Represents the number of residential real estate properties.

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Fair value disclosure of other real estate owned at the end of the period.

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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

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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).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of transfers of financial instrument classified as a liability into level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

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Amount of transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

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