Goodwill (Tables)

6 Months Ended

Jan. 31, 2015

Goodwill [Abstract]

Schedule of goodwill by segment

The carrying amount of goodwill by segment as of January 31, 2015 and July 31, 2014 are as follows:

	Telecommunications Transmission		RF Microwave Amplifiers	Mobile Data Communications		Total
Goodwill	$	107,779,000	29,575,000	13,249,000		$	150,603,000
Accumulated impairment	—		—	(13,249,000	)	(13,249,000		)
Balance	$	107,779,000	29,575,000	—		$	137,354,000