Variable Interest Entity (Details) (USD $)	3 Months Ended
	Sep. 26, 2014	Jun. 30, 2014	Sep. 26, 2014 Variable Interest Entity, Primary Beneficiary [Member]	Jun. 30, 2014 Variable Interest Entity, Primary Beneficiary [Member]	Oct. 01, 2013 Subordinated Debt Variable Interest Entity, Primary Beneficiary [Member] CAH note payable
Current assets:
Restricted investments	$ 2,766,000	$ 2,934,000	$ 63,000	$ 63,000
Total current assets	229,058,000	221,041,000	63,000	63,000
Other assets	13,239,000	13,378,000	4,344,000	4,344,000
Total assets	344,582,000	335,585,000	4,407,000	4,407,000
Current liabilities:
Environmental remediation liabilities	163,000	138,000	7,000	7,000
Total current liabilities	137,922,000	132,225,000	7,000	7,000
Long-term environmental remediation liabilities	8,686,000	6,268,000	14,000	16,000
Total liabilities	216,857,000	210,702,000	21,000	23,000
Variable Interest Entity, Amount of Financial Support	3,992,000
Subordinated Long-term Debt, Noncurrent					$ 2,448,000