Supplementary Balance Sheet Information (Tables)

3 Months Ended

Mar. 31, 2020

Inventory Disclosure [Abstract]

Schedule of Inventory

The components of inventories are as follows (in thousands):

	March 31, 2020		December 31, 2019
Raw materials	$	3,855	$	4,309
Work-in-process	2,723		2,710
Finished goods	352		461
Total inventories	6,930		7,480
Less reserve for excess and obsolete inventories	(313)		(383)
Total inventories, net	$	6,617	$	7,097

Schedule of Property and Equipment

Property and equipment consist of the following (in thousands):

	March 31, 2020		December 31, 2019
Land	$	995	$	995
Buildings and leasehold improvements	5,451		5,451
Machinery and equipment	57,388		57,417
Total property and equipment	63,834		63,863
Less accumulated depreciation	(43,072)		(41,725)
Total property and equipment, net	$	20,762	$	22,138