Combined and Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Statements of Operations [Abstract]
REVENUES	$ 1,130	$ 553
COSTS AND EXPENSES:
Direct cost of revenues	630	92
Selling, general and administrative	3,115	1,010
TOTAL COSTS AND EXPENSES	3,745	1,102
Gain on sale of rights in wireless spectrum	150	5,330
Loss on settlement of Straight Path Spectrum legal proceedings	(1,150)
(LOSS) INCOME FROM OPERATIONS	(3,615)	4,781
Interest income	11	8
Interest expense		(9)
Other income		1
(LOSS) INCOME BEFORE INCOME TAXES	(3,604)	4,781
Provision for income taxes	(8)	(25)
NET (LOSS) INCOME	(3,612)	4,756
Net loss attributable to noncontrolling interests	399	33
NET (LOSS) INCOME ATTRIBUTABLE TO STRAIGHT PATH COMMUNICATIONS INC.	$ (3,213)	$ 4,789
(Loss) earnings per share attributable to Straight Path Communications Inc. stockholders:
Basic	$ (0.31)	$ 0.42
Diluted	$ (0.31)	$ 0.39
Weighted-average number of shares used in calculation of (loss) earnings per share:
Basic	10,504	11,424
Diluted	10,504	12,425