Condensed Consolidated Statement of Comprehensive Income (Loss) Statement (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Net income	$ (2,670)	$ 3,149	$ 3,278	$ 11,652
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(214)	13	(215)	(177)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	38	0	58	0
Other Comprehensive Income (Loss), Net of Tax	(176)	13	(157)	(177)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (2,846)	$ 3,162	$ 3,121	$ 11,475