PREPAID EXPENSES AND OTHER ASSETS (Tables)

12 Months Ended

Dec. 31, 2017

PREPAID EXPENSES AND OTHER ASSETS [Abstract]

Schedule of Prepaid Expenses and Other Assets

Prepaid expenses and other assets at December 31 are summarized as follows:

	2017		2016
	(thousands of dollars)
Prepaid license	$	1,919	$	1,919
Prepaid catalyst		779		187
Prepaid insurance		-		797
Spare parts		954		-
Other prepaid expenses and assets		772		608
Total	$	4,424	$	3,511