CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS
Net loss	$ (204)	$ (316)	$ (11,252)	$ (801)
Other comprehensive income items:
Actuarial gains	17	28	42	84
Income tax provision on actuarial gains		(6)		(18)
Other comprehensive income:
Retirement benefits adjustments, net of income taxes	17	22	42	66
Total comprehensive loss	$ (187)	$ (294)	$ (11,210)	$ (735)