Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Net Revenue:
Product	$ 116,935	$ 108,454
Engineering	1,381	1,628
Total net revenue	118,316	110,082
Cost of sales:
Product	65,138	65,626
Engineering	1,179	1,520
Total cost of sales	66,317	67,146
Gross profit	51,999	42,936
Operating expenses:
Research and product development	17,369	18,854
Selling and marketing	15,509	14,570
General and administrative	14,222	14,916
Restructuring	(58)	(39)
Total operating expenses	47,042	48,301
Income (loss) from operations	4,957	(5,365)
Other income (expense), net	118	(421)
Income (loss) before income taxes	5,075	(5,786)
Provision for (benefit from) income taxes	1,421	(2,011)
Net income (loss)	$ 3,654	$ (3,775)
Net income (loss) per common share:
Basic	$ 0.29	$ (0.30)
Diluted	$ 0.29	$ (0.30)
Weighted average shares outstanding:
Basic	12,407	12,443
Diluted	12,570	12,443
Dividends declared and paid per share:	$ 0.10	$ 0.10