TRADE RECEIVABLES (Tables)

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Schedule of Trade Receivables, Net

Trade receivables, net, at December 31, consisted of the following:
	2021		2020
	(thousands of dollars)
Trade receivables	$	33,111	$	25,601
Less allowance for doubtful accounts	(300)		(300)
Trade receivables, net	$	32,811	$	25,301