Goodwill (Tables)

12 Months Ended

Jul. 31, 2011

Goodwill [Abstract]

Schedule of Goodwill by Segment

	Telecommunications	RF Microwave	Mobile Data
	Transmission	Amplifiers	Communications	Total
Goodwill	$  107,779,000	29,575,000	11,899,000	$  149,253,000
Accumulated impairment	-	-	-	-
Balance at July 31, 2009	107,779,000	29,575,000	11,899,000	149,253,000
Insite earn-out payment	-	-	1,350,000	1,350,000
Impairment of goodwill	-	-	(13,249,000)	(13,249,000)
Goodwill	107,779,000	29,575,000	13,249,000	150,603,000
Accumulated impairment	-	-	(13,249,000)	(13,249,000)
Balance at July 31, 2010	107,779,000	29,575,000	-	137,354,000
Goodwill	107,779,000	29,575,000	13,249,000	150,603,000
Accumulated impairment	-	-	(13,249,000)	(13,249,000)
Balance at July 31, 2011	$   107,779,000	29,575,000	-	$ 137,354,000