Stock-based compensation (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Summary of Compensation Expense and Income Tax Benefit Recognized

The following table represents the compensation expense and income tax benefits recognized for stock options and restricted stock awards for the periods indicated:

	Three Months Ended March 31, 2024
	(in thousands)
Stock-based compensation expense
Stock options	$	164
Restricted stock awards		160
Total stock-based compensation expense	$	324
Related tax benefits recognized in earnings	$	69

Schedule of Compensation Cost Related to Non-vested Awards

The following table sets forth the total compensation cost related to non-vested awards not yet recognized and the weighted average period (in years) over which it is expected to be recognized as of the periods indicated:

	March 31, 2024				December 31, 2023
	Amount		Weighted average period		Amount		Weighted average period
	(Dollars in thousands)
Stock options	$	2,997		4.55	$	3,162		4.80
Restricted stock awards		2,921		4.55		3,081		4.80
Total	$	5,918			$	6,243