CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jan. 31, 2017	Jul. 31, 2016
Accounts receivable, trade, allowance for doubtful accounts	$ 481	$ 489
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares Authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares Authorized	1,400,000,000	1,400,000,000
Common stock, shares issued	55,553,041	55,249,076
Common stock, shares outstanding	55,553,041	55,249,076