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

12 Months Ended

Jul. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

Unaudited quarterly financial data for fiscal 2015 and 2014 is summarized as follows:

	Quarter Ended
Fiscal 2015	October 31, 2014			January 31, 2015			April 30, 2015			July 31, 2015
Total revenues	$	24,824		$	23,092		$	23,986		$	25,697
Gross profit		10,999			10,028			10,483			11,317
(Loss) income before income taxes		(3,606	)		(4,206	)		(3,003	)		8,523
Net (loss) income		(3,729	)		(4,091	)		(2,907	)		8,442
Basic and diluted (loss) income per common share	$	(0.08	)	$	(0.09	)	$	(0.06	)	$	0.18

	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	)