Customers Comprising Ten Percent or more Revenues (Detail)	3 Months Ended			9 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Revenue, Major Customer [Line Items]
Revenue from Customers	26.00%		43.00%	35.00%	57.00%
Mercury Commercial Electronics | Lockheed Martin Corporation
Revenue, Major Customer [Line Items]
Revenue from Customers	26.00%		11.00%	13.00%	13.00%
Mercury Commercial Electronics | Raytheon Company
Revenue, Major Customer [Line Items]
Revenue from Customers		[1]	19.00%	11.00%	24.00%
Mercury Commercial Electronics | Northrop Grumman Corporation
Revenue, Major Customer [Line Items]
Revenue from Customers		[1]	13.00%	11.00%	20.00%

[1] Indicates that the amount is less than 10% of the Company's revenues for the respective period.