The average return on equity period used for conditions for vesting of performance-based restricted stock units.

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+ References

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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Employee benefit and stock plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Jan. 30, 2026	Jan. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Supplemental Executive Retirement Plans ("SERP")
Share-based Compensation Arrangement by Share-based Payment Award
Salaries and employee benefits expense			$ 700	$ 700
FNCB Merger
Share-based Compensation Arrangement by Share-based Payment Award
Common stock available for grant as awards			12,649
2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Net compensation expense				186
2023 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Net compensation expense			$ 218	$ 279
Performance-based restricted stock awards \| 2023 Plan \| Share-Based payment arrangement, Employee
Share-based Compensation Arrangement by Share-based Payment Award
Granted shares			0	40,237
Performance-based restricted stock awards \| 2023 Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Shares or units vesting period			2 years
Cumulative diluted earnings per share period used for conditions for vesting of performance-based restricted stock units			2 years
Average return on equity period used for conditions for vesting of performance-based restricted stock units			2 years
Performance-based restricted stock awards \| 2023 Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award
Shares or units vesting period			3 years
Cumulative diluted earnings per share period used for conditions for vesting of performance-based restricted stock units			3 years
Average return on equity period used for conditions for vesting of performance-based restricted stock units			3 years
Time based restricted stock awards \| 2023 Plan \| Share-Based payment arrangement, Employee
Share-based Compensation Arrangement by Share-based Payment Award
Granted shares			0	13,917
Restricted Stock \| 2017 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized compensation expense			$ 2,300
Remaining period over which the shares/cost will be expensed			3 years 7 months 6 days
Restricted Stock \| 2023 Plan \| Share-Based payment arrangement, Nonemployee \| Director
Share-based Compensation Arrangement by Share-based Payment Award
Granted shares	4,455	3,080
Stock awards fair value	$ 50.61	$ 53.64
Grants in period, Per director shares	297
Net compensation expense			$ 56	$ 56
Restricted stock and restricted stock units in aggregate issued in 2025 \| 2023 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Shares or units vesting period			3 years
Restricted stock and restricted stock units in aggregate issued in 2024 \| 2023 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Shares or units vesting period			5 years
Restricted stock and restricted stock units in aggregate issued in 2023 \| 2023 Plan
Share-based Compensation Arrangement by Share-based Payment Award
Shares or units vesting period			7 years