Fair value estimates - Carrying and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Investment securities:
Available-for-sale	$ 385,240	$ 398,927
Common equity securities	78	98
Held-to-maturity	68,224	71,698
Mortgage servicing rights	852	870
Financial liabilities:
Subordinated debentures	33,000	33,000
Carrying Value
Financial assets:
Cash and due from banks	49,956	187,365
Investment securities:
Available-for-sale	385,240	398,927
Common equity securities	78	98
Held-to-maturity	81,598	84,851
Loans held for sale		250
Net loans	2,846,430	2,828,002
Accrued interest receivable	13,326	12,734
Mortgage servicing rights	852	870
Restricted equity securities (FHLB and other)	7,736	5,180
Interest rate swaps	20,958	19,278
Total assets	3,406,174	3,537,555
Financial liabilities:
Deposits	3,064,959	3,279,037
Short-term borrowings	104,250	17,590
Long-term debt	25,000	25,000
Subordinated debentures	33,000	33,000
Accrued interest payable	5,507	5,765
Interest rate swap	20,538	18,808
Total liabilities	3,253,254	3,379,200
Fair Value
Financial assets:
Cash and due from banks	49,956	187,365
Investment securities:
Available-for-sale	385,240	398,927
Common equity securities	78	98
Held-to-maturity	68,224	71,698
Loans held for sale		250
Net loans	2,646,017	2,593,151
Accrued interest receivable	13,326	12,734
Mortgage servicing rights	1,709	1,745
Restricted equity securities (FHLB and other)	7,736	5,180
Interest rate swaps	20,958	19,278
Total assets	3,193,244	3,290,426
Financial liabilities:
Deposits	3,059,952	3,274,774
Short-term borrowings	104,254	17,590
Long-term debt	24,761	24,924
Subordinated debentures	43,284	45,504
Accrued interest payable	5,507	5,765
Interest rate swap	20,538	18,808
Total liabilities	3,258,296	3,387,365
Level 1
Financial assets:
Cash and due from banks	49,956	187,365
Investment securities:
Available-for-sale	180,007	184,057
Common equity securities	78	98
Level 2
Investment securities:
Available-for-sale	205,233	214,870
Held-to-maturity	68,224	71,698
Accrued interest receivable	13,326	12,734
Mortgage servicing rights	1,709	1,745
Restricted equity securities (FHLB and other)	7,736	5,180
Interest rate swaps	20,958	19,278
Financial liabilities:
Deposits	3,059,952	3,274,774
Short-term borrowings	104,254	17,590
Long-term debt	24,761	24,924
Subordinated debentures	43,284	45,504
Accrued interest payable	5,507	5,765
Interest rate swap	20,538	18,808
Level 3
Investment securities:
Net loans	$ 2,646,017	$ 2,593,151

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents accrued interest payable as of the balance sheet date.

No definition available.