Consolidated Balance Sheet Parentheticals (Parentheticals) - $ / shares	Dec. 30, 2018	Sep. 30, 2018
Preferred Stock, Par or Stated Value Per Share	$ 0	$ 0
Preferred Stock, Shares Authorized	500,000	500,000
Preferred Stock, Shares Issued	0	0
Common Class A [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	120,000,000	120,000,000
Common Stock, Shares, Issued	57,080,000	56,712,000
Common Class B [Member]
Common Stock, Par or Stated Value Per Share	$ 2.00	$ 2.00
Common Stock, Shares Authorized	30,000,000	30,000,000
Common Stock, Shares, Issued	0	0