Commitments and Contingencies (Details Textual) - USD ($)	1 Months Ended	3 Months Ended
	Jun. 30, 2013	Oct. 31, 2016	Oct. 31, 2015
Minimum [Member]
Commitments and Contingencies (Textual)
Recoverable contingency patents allegedly infringed, percentage		0.00%
Maximum [Member]
Commitments and Contingencies (Textual)
Recoverable contingency patents allegedly infringed, percentage		40.00%
Subsidiaries [Member] | Former Chief Executive Officer [Member]
Commitments and Contingencies (Textual)
Payments to be made from revenue, percentage	50.00%
Amount of maximum future payment for wireless spectrum licenses	$ 3,250,000
Amount incurred for obligation		$ 71,000	$ 3,000
Straight Path IP Group [Member]
Commitments and Contingencies (Textual)
Settlement of litigation, description		Straight Path IP Group generally pays law firms that represent it in litigation against alleged infringers of its intellectual property rights a percentage of the amounts recovered ranging from 0% to 40% depending on several factors.