Deferred Revenue

12 Months Ended

Dec. 31, 2019

Revenue Recognition and Deferred Revenue [Abstract]

Deferred Revenue

Note 5 — Deferred Revenue

Deferred revenue as of December 31, 2019 and 2018 consisted of the following (in thousands of dollars): 

	As of December 31,
	2019		2018
Deferred Revenue, Current
Maintenance agreements	$	-	$	89
Service and other agreements		35		93
Total Deferred Revenue, Current		35		182
Total Deferred Revenue	$	35	$	182