Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Net sales
Net sales	$ 257,246	$ 225,589
Cost of sales
Cost of sales	141,377	120,340
Gross profit	115,869	105,249
Expenses:
Selling	38,411	33,958
General and administrative	55,287	36,535
Research and development	7,747	7,078
Total operating expenses	101,445	77,571
Income from operations	14,424	27,678
Interest expense, net	5,719	2,026
Income before income taxes	8,705	25,652
Income taxes	2,938	6,410
Net income	$ 5,767	$ 19,242
Earnings per common share:
Basic (in dollars per share)	$ 0.14	$ 0.46
Diluted (in dollars per share)	0.14	0.46
Dividends per common share (in dollars per share)	$ 0	$ 0
Product sales
Net sales
Net sales	$ 225,678	$ 195,760
Cost of sales
Cost of sales	120,586	99,310
Product service
Net sales
Net sales	31,568	29,829
Cost of sales
Cost of sales	$ 20,791	$ 21,030