Employee Benefits - Schedule of compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Employee Benefits
Total stock-based compensation expense	$ 1,443
Restricted Stock
Employee Benefits
Total stock-based compensation expense	1,443
Unrecognized stock compensation expense	$ 22,900	$ 18,200

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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+ Details

NB Bancorp, Inc. 10-Q