Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2016	Jan. 31, 2015
Net Income	$ 3,821	$ 2,797	$ 9,244	$ 4,917
Other Comprehensive Income (Loss):
Unrealized loss on marketable securities			0	(114)
Pension and postretirement benefits (net of tax)	130	93	308	192
Cumulative translation adjustment	(139)	(352)	(150)	(437)
Other Comprehensive Income (Loss)	(9)	(259)	158	(359)
Total Comprehensive Income	$ 3,812	$ 2,538	$ 9,402	$ 4,558