CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net income	$ 21,677	$ 5,406	$ 14,862
Other comprehensive income (loss); change in funded status of pension plan, net of $55, $330 and $173 in tax for 2020, 2019 and 2018, respectively	(150)	(867)	(372)
Comprehensive income	$ 21,527	$ 4,539	$ 14,490