Inventories (Tables)

3 Months Ended

Mar. 31, 2021

Inventories

Schedule of inventories

Inventories consisted of the following (in thousands):

	As of March 31,		As of December 31,
	2021		2020
Raw materials and purchased parts	$	19,202	$	19,591
Work in process		1,253		1,431
Finished goods		37,835		35,476
Total inventories	$	58,290	$	56,498