Investments and Fair Value Measurements (Details Textual) (USD $)	3 Months Ended			12 Months Ended	3 Months Ended
	Sep. 28, 2013	Dec. 28, 2013	Mar. 30, 2013	Mar. 30, 2013 U.S. government/agency securities [Member]	Jun. 29, 2013 Fair Value, Inputs, Level 3 [Member] Fair Value, Measurements, Nonrecurring [Member]
Investments and Fair Value Measurements (Textual)
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses [Less Than]				$ 100,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value		0		14,000,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0	0
Impairment of certain property and equipment					1,700,000
Fair value of certain property and equipment					800,000
Loss on the sale of certain property and equipment	$ 600,000