Business Segment Information (Tables)

3 Months Ended

Oct. 31, 2016

Business Segment Information [Abstract]

Summary of operating results for the business segments

	Straight			Straight			Straight
	Path			Path			Path
	Spectrum			IP Group			Ventures			Total
Three Months Ended October 31, 2016
Revenues	$	159		$	—		$	—		$	159
Loss from operations		(2,985	)		(875	)		(417	)		(4,277	)
Three Months Ended October 31, 2015
Revenues	$	105		$	1,598		$	—		$	1,703
Loss from operations		(334	)		(357	)		—			(691	)

Summary of total assets for the business segments

	Straight		Straight		Straight
	Path		Path		Path
	Spectrum		IP Group		Ventures		Total
	(in thousands)
Total assets
October 31, 2016	$	8,583	$	2,029	$	1,100	$	11,712
July 31, 2016		10,174		2,223		1,100		13,497