Industrial Development Subsidy (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013	Mar. 31, 2012
Industrial Development Subsidy (Textual)
Industrial development subsidies	$ 12,600,000		$ 12,600,000
Remaining balance of industrial development subsidies	7,400,000		7,400,000
Minimum period in which remaining subsidy expected to be recognized			3 years
Maximum period in which remaining subsidy expected to be recognized			20 years
Amount of subsidy used for reduction in cost of goods sold	185,000	191,000	1,103,000	880,000
Amount of subsidy used for reduction in operating expenses	$ 46,000	$ 45,000	$ 136,000	$ 135,000