Inventories

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Inventories

3. Inventories

Inventories consist of the following (in thousands):

	March 31, 2020		December 31, 2019
Raw materials and purchased parts	$	5,411	$	4,176
Work in progress		1,663		1,870
Finished goods		28,658		26,584
Total inventories	$	35,732	$	32,630