Basis of Presentation (Details Textual)	9 Months Ended
	Apr. 30, 2016
Straight Path Spectrum [Member]
Basis of Presentation (Textual)
Ownership in straight path spectrum	100.00%
Ownership in straight path spectrum indirect transaction	100.00%
Straight Path IP Group [Member]
Basis of Presentation (Textual)
Ownership in straight path spectrum	84.50%