Summary of Selected Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Jul. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

Unaudited quarterly financial data for fiscal 2014 and 2013 is summarized as follows:

	Quarter Ended
Fiscal 2014	October 31, 2013			January 31, 2014			April 30, 2014			July 31, 2014
Total revenues	$	24,134		$	22,928		$	23,978		$	24,907
Gross profit		10,579			9,771			10,394			10,935
Loss before income taxes		(2,725	)		(3,570	)		(448	)		(3,162	)
Net loss		(2,787	)		(3,566	)		(455	)		(3,169	)
Basic and diluted loss per common share	$	(0.07	)	$	(0.09	)	$	(0.01	)	$	(0.07	)

	Quarter Ended
Fiscal 2013	October 31, 2012			January 31, 2013			April 30, 2013			July 31, 2013
Total revenues	$	25,630		$	22,210		$	22,598		$	23,269
Gross profit		11,736			8,642			9,048			9,446
Loss before income taxes		(3,755	)		(5,854	)		(5,808	)		(3,532	)
Net loss		(3,691	)		(5,674	)		(5,770	)		(3,102	)
Basic and diluted loss per common share	$	(0.09	)	$	(0.14	)	$	(0.15	)	$	(0.08	)