FINANCIAL INSTRUMENTS (Tables)

3 Months Ended

Mar. 31, 2020

FINANCIAL INSTRUMENTS

Schedule of Fair Value on Recurring and Non-recurring Basis

	March 31, 2020
(thousands of dollars)	Level 1		Level 2		Level 3		Total
Current Assets
Short-term available-for-sale investments	$	—	$	—	$	—	$	—
Total current assets recorded at fair value	$	—	$	—	$	—	$	—
Non-current Assets
Restricted cash	$	3,806	$	—		—	$	3,806
Total non-current assets recorded at fair value	$	3,806	$	—	$	—	$	3,806

	December 31, 2019
(thousands of dollars)	Level 1		Level 2		Level 3		Total
Current Assets
Short-term available-for-sale investments	$	—	$	—	$	—	$	—
Total current assets recorded at fair value	$	—	$	—	$	—	$	—
Non-current Assets
Restricted cash	$	3,797	$	—		—	$	3,797
Total non-current assets recorded at fair value	$	3,797	$	—	$	—	$	3,797