Investments (Details Textual) (USD $)	3 Months Ended			12 Months Ended	3 Months Ended	12 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014 Common stock of industrial and other companies [Member]	Mar. 29, 2014 Common stock of industrial and other companies [Member]	Jun. 28, 2014 Common stock of bank trust, insurance, and public utility companies [Member]	Mar. 29, 2014 Common stock of bank trust, insurance, and public utility companies [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value			$ 4,300,000	$ 4,700,000	$ 393,000	$ 478,000
Total unrealized losses			53,000	64,000	8,000	(9,000)
Investments (Textual) [Abstract]
Value of investments to be other-than-temporarily impaired	0
Gross gains realized	303,000	68,000
Gross losses realized	$ (68,000)	$ (36,000)