Revenues (Tables)

6 Months Ended

Jun. 30, 2020

Revenues [Abstract]

Disaggregation of Revenue by Geographic Region

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2020		2019		2020		2019
United States
Product sales	$	3,687	$	21,069	$	21,127	$	40,633
Services		917		5,674		4,445		11,455
Total United States		4,604		26,743		25,572		52,088
Canada
Product sales		1,171		8,801		21,978		25,422
Services		329		2,705		8,888		11,080
Total Canada		1,500		11,506		30,866		36,502
Other Countries
Product sales		-		75		1,183		1,122
Services		2,628		1,444		5,661		2,906
Total Other Countries		2,628		1,519		6,844		4,028
Total
Product sales		4,858		29,945		44,288		67,177
Services		3,874		9,823		18,994		25,441
Total revenues	$	8,732	$	39,768	$	63,282	$	92,618

Schedule of Contract Liabilities

Balance at December 31, 2019	$	59
Additions		-
Revenue recognized		(8)
Balance at June 30, 2020	$	51