ACCRUED LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2020

Accrued Liabilities [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities at December 31 are summarized as follows:
	2020		2019
	(thousands of dollars)
Accrued state taxes	$	125	$	—
Accrued payroll	2,282		1,250
Accrued royalties	260		273
Accrued officer compensation	1,053		1,687
Accrued professional expenses	559		1,000
Accrued foreign taxes	1,054		—
Other liabilities	1,524		1,532
Total	$	6,857	$	5,742