CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net revenues:
Total net revenues	$ 187,232	$ 201,246
Costs of sales:
Total costs of sales	148,758	162,783
Gross margin	38,474	38,463
Operating expenses:
Selling, general and administrative	37,014	34,983
Research and development	13,372	12,412
Amortization of identifiable intangible assets	1,219	966
Total operating expenses	51,605	48,361
Other (expense) income, net	(1,503)	306
Interest expense, net	(4,571)	(387)
Loss before provision for income taxes	(19,205)	(9,979)
Benefit from (provision for) income taxes	3,634	(14,143)
Net loss	$ (15,571)	$ (24,122)
Basic Loss per Share:
Net loss (in dollars per share)	$ (0.96)	$ (1.50)
Diluted Loss per Share:
Net loss (in dollars per share)	$ (0.96)	$ (1.50)
Weighted average shares outstanding
Basic (in shares)	16,223	16,041
Diluted (in shares)	16,223	16,041
Product
Net revenues:
Total net revenues	$ 66,329	$ 78,787
Costs of sales:
Total costs of sales	51,147	60,694
Service
Net revenues:
Total net revenues	56,978	55,282
Costs of sales:
Total costs of sales	39,368	42,107
Contract
Net revenues:
Total net revenues	63,925	67,177
Costs of sales:
Total costs of sales	$ 58,243	$ 59,982