Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Inventory [Line Items]

Summary of components of inventories, net of allowances

	December 31,		December 31,
	2019		2018
Finished goods	$	15,319	$	15,577
Work in process		778		1,139
Raw materials and supplies		5,208		7,667
	$	21,305	$	24,383

Allowance for excess and obsolete inventory

Inventory [Line Items]

Schedule of activity in allowance for inventory valuation and obsolescence

		December 31,		December 31,
		2019		2018
Balance at beginning of period	$	1,561	$	3,067
Provision		2,322		2,926
Charges processed		(2,814)		(4,432)
Balance at end of period	$	1,069	$	1,561