Provision for income taxes (Tables)

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Provision for Income Taxes

	Three months ended				Six months ended
	June 30,				June 30,
	2023		2024		2023		2024
	(In thousands)
Expected tax expense, at the U.S. federal statutory   income tax rate of 21%	$	1,126	$	1,339	$	2,803	$	2,376
State income taxes		161		188		401		333
Other, net		—		5		2		8
Total provision for income taxes	$	1,287	$	1,532	$	3,206	$	2,717
Comprehensive provision for income taxes allocable to:
Net income	$	1,287	$	1,532	$	3,206	$	2,717
Other comprehensive income (loss) - marketable securities		(18)		1		(31)		—
Total	$	1,269	$	1,533	$	3,175	$	2,717