Consolidated Statement of Equity (Deficiency) (Unaudited) - 6 months ended Jan. 31, 2017 - USD ($) $ in Thousands	Total	Common Stock Class A common stock	Common Stock Class B common stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock	Noncontrolling Interests
Balance at Jul. 31, 2016	$ 11,381	$ 8	$ 114	$ 21,589	$ (8,225)	$ (428)	$ (1,677)
Balance, shares at Jul. 31, 2016		787	11,431
Common stock issued for exercises of stock options	8			8
Common stock issued for exercises of stock options, shares			1
Common stock issued for compensation	4,286		$ 3	4,283
Common stock issued for compensation, shares			309
Stock-based compensation	193			193
Net loss	(30,035)				(29,556)		(479)
Balance at Jan. 31, 2017	$ (14,167)	$ 8	$ 117	$ 26,073	$ (37,781)	$ (428)	$ (2,156)
Balance, shares at Jan. 31, 2017		787	11,741