CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2017	Jan. 31, 2016
Net loss	$ (2,906)	$ (13,948)	$ (11,449)	$ (28,721)
Other comprehensive loss:
Foreign currency translation adjustment	(734)	(1,077)	(2,003)	(1,946)
Pension liability adjustments, net of tax	353		750
Net unrealized holding gain (loss) on securities, net of tax	(10)	3		31
Other comprehensive income (loss)	(391)	(1,074)	(1,253)	(1,915)
Comprehensive loss	$ (3,297)	$ (15,022)	$ (12,702)	$ (30,636)