Goodwill - Additional Information (Detail) (USD $)	12 Months Ended			6 Months Ended	12 Months Ended	6 Months Ended
	Jun. 30, 2014 market_analysis	Jun. 30, 2013	Jun. 30, 2014 MCE component	Jun. 30, 2013 Micronetics [Member]	Jun. 30, 2014 Micronetics [Member]	Jun. 30, 2013 Micronetics [Member] MCE
Goodwill [Line Items]
Number of components within operating segment			4
Impairment loss		$ 0
Number of market analyses used for goodwill impairment test	2
Goodwill adjustment				(1,118,000)	91,000	(1,118,000)
Correction of an immaterial error offset by deferred income taxes				$ 376,000	$ 504,000	$ 376,000