Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Oct. 31, 2016	Oct. 31, 2015
Net revenue:
Product	$ 120,245	$ 114,129
Engineering	873	819
Total net revenue	121,118	114,948
Cost of sales:
Product	68,759	62,947
Engineering	723	1,062
Total cost of sales	69,482	64,009
Gross profit	51,636	50,939
Operating expenses:
Research and product development	15,850	17,239
Selling and marketing	18,180	15,233
General and administrative	13,621	13,196
Restructuring	32	3,283
Total operating expenses	47,683	48,951
Income from operations	3,953	1,988
Other expense, net	(442)	(458)
Income before income taxes	3,511	1,530
Provision for income taxes	980	154
Net income	$ 2,531	$ 1,376
Net income per common share:
Basic	$ 0.20	$ 0.11
Diluted	$ 0.20	$ 0.11
Weighted average shares outstanding:
Basic	12,419	12,427
Diluted	12,616	12,607
Dividends declared and paid per share	$ 0.10	$ 0.10