Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Net Revenue:
Product	$ 114,129	$ 116,935
Engineering	819	1,381
Total net revenue	114,948	118,316
Cost of sales:
Product	62,947	65,138
Engineering	1,062	1,179
Total cost of sales	64,009	66,317
Gross profit	50,939	51,999
Operating expenses:
Research and product development	17,239	17,369
Selling and marketing	15,233	15,509
General and administrative	13,196	14,222
Restructuring	3,283	(58)
Total operating expenses	48,951	47,042
Income from operations	1,988	4,957
Other income (expense), net	(458)	118
Income before income taxes	1,530	5,075
Provision for income taxes	154	1,421
Net income	$ 1,376	$ 3,654
Net income per common share:
Basic	$ 0.11	$ 0.29
Diluted	$ 0.11	$ 0.29
Weighted average shares outstanding:
Basic	12,427	12,407
Diluted	12,607	12,570
Dividends declared and paid per share	$ 0.10	$ 0.10