Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 537	$ 1,457
Other comprehensive income
Pension and post-retirement adjustments	(10)	0
Other comprehensive income	(10)	0
Income tax provision related to items of other comprehensive income	0	0
Other comprehensive income, net of tax	(10)	0
Comprehensive income, net of tax	$ 527	$ 1,457