CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CONSOLIDATED STATEMENTS OF OTHER COMPREHENSIVE INCOME [Abstract]
Net income	$ 272	$ 4,489
Other comprehensive income (loss)
Derivative qualifying as a cash flow hedge, net of taxes (nil)	0	211
Employee pension plan adjustments, net of taxes (nil)	(30)	(134)
Comprehensive income	$ 242	$ 4,566