CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Net revenues:
Total net revenues	$ 201,246	$ 232,605
Costs of sales:
Total costs of sales	162,783	181,594
Gross margin	38,463	51,011
Operating expenses:
Selling, general and administrative	34,983	38,171
Research and development	12,412	11,995
Amortization of identifiable intangible assets	966	966
Total operating expenses	48,361	51,132
Operating loss from continuing operations	(9,898)	(121)
Other income, net	306	629
Interest expense, net	(387)	(121)
(Loss) income from continuing operations before provision for income taxes	(9,979)	387
Provision for income taxes	(14,143)	(3,997)
Loss from continuing operations	(24,122)	(3,610)
Discontinued operations
Income on discontinued operations (net of tax)	0	224
Net loss	$ (24,122)	$ (3,386)
Basic (Loss) Income per Share:
(Loss) Income from continuing operations (in dollars per share)	$ (1.50)	$ (0.23)
Income (Loss) from discontinued operations (in dollars per share)	0.00	0.01
Net (loss) income (in dollars per share)	(1.50)	(0.22)
Diluted (Loss) Income per Share:
(Loss) Income from continuing operations (in dollars per share)	(1.50)	(0.23)
Income (Loss) from discontinued operations (in dollars per share)	0.00	0.01
Net (loss) income (in dollars per share)	$ (1.50)	$ (0.22)
Weighted average shares outstanding
Basic (in shares)	16,041	15,949
Diluted (in shares)	16,041	15,949
Product
Net revenues:
Total net revenues	$ 78,787	$ 115,126
Costs of sales:
Total costs of sales	60,694	85,850
Service
Net revenues:
Total net revenues	55,282	56,467
Costs of sales:
Total costs of sales	42,107	41,445
Contract
Net revenues:
Total net revenues	67,177	61,012
Costs of sales:
Total costs of sales	$ 59,982	$ 54,299