PREPAID EXPENSES AND OTHER ASSETS (Tables)

3 Months Ended

Mar. 31, 2018

PREPAID EXPENSES AND OTHER ASSETS [Abstract]

Schedule of Prepaid Expenses and Other Assets

Prepaid expenses and other assets consisted of the following:

	March 31, 2018		December 31, 2017
	(thousands of dollars)
Prepaid license	$	1,919	$	1,919
Prepaid catalyst		723		779
Prepaid insurance		92		-
Spare parts		1,100		954
Other prepaid expenses and assets		1,297		772
Total	$	5,131	$	4,424