DESCRIPTION OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

DESCRIPTION OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Schedule of revenue disaggregated by revenue source

Revenue disaggregated by revenue source for the years ended December 31, 2019 and 2018 consists of the following (in thousands); revenue excludes sales and usage-based taxes where it has been determined that we are acting as a pass-through agent:    

	Years Ended December 31,
	2019		2018
Product sales	$	6,416	$	5,644
Royalties		8,316		8,917
Total revenue	$	14,732	$	14,561