Accounts receivable, net (Tables)

6 Months Ended

Jan. 31, 2018

Percentage of Net Product and Engineering Revenue from Major Customers

Set forth in the table below are customers that individually accounted for 10% or more of our net revenue.

	Three Months Ended						Six Months Ended
	January 31,						January 31,
	2018			2017			2018			2017
Koninklijke Philips Electronics N.V., or Philips		13	%		14	%		13	%		13	%
Siemens AG		11	%		11	%		11	%		12	%
L-3 Communications Corporation, or L-3	*				10	%	*				10	%
Toshiba Corporation or Toshiba	*				11	%	*				10	%

Note (*): Total net revenue was less than 10% in this period.

Summary of Net Accounts Receivable Due from Customers With Net Accounts Receivable Balance Greater than or Equal to 10% of Net Account Receivable Balance

The following table summarizes our customers with net accounts receivable balances greater than or equal to 10% of our total net accounts receivable balance:

	As of			As of
	January 31,			July 31,
	2018			2017
Philips		16	%		14	%
Smiths Detection		10	%	*
GE	*				11	%

Note (*): Total net accounts receivable balance was less than 10% in this period.