Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Sales:
Product	$ 18,007	$ 25,216
Service	18,978	14,711
Net sales	36,985	39,927
Costs and expenses:
Costs of product sales	11,332	13,909
Costs of service sales	11,060	10,249
Research and development	3,667	2,950
Sales, marketing and support	7,470	6,943
General and administrative	5,150	3,374
Total costs and expenses	38,679	37,425
(Loss) income from operations	(1,694)	2,502
Interest income	210	168
Interest expense	191	76
Other income, net	107	24
(Loss) income before income tax (benefit) expense	(1,568)	2,618
Income tax (benefit) expense	(445)	655
Net (loss) income	$ (1,123)	$ 1,963
Net (loss) income per common share
Basic	$ (0.07)	$ 0.13
Diluted	$ (0.07)	$ 0.13
Weighted average number of common shares outstanding:
Basic	15,313,000	14,989,000
Diluted	15,313,000	15,219,000