Income Taxes (Details Textual) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 30, 2018	Dec. 31, 2017	Jul. 01, 2018
Income Tax [Line Items]
Measurement period adjustments			$ 372,000
Tax benefit resulting from termination of qualified, noncontributory defined benefit pension plan	$ 7,900,000		$ 7,900,000
Effective income tax rate	5.10%	18.50%
2017 Tax Cuts and Jobs Act
Income Tax [Line Items]
U.S. Federal statutory tax rate effective January 1, 2018, which impacted our fiscal 2018 annual effective tax rate recorded in the current period			21.00%		28.00%
Period, in years, over which the one-time transition tax on repatriated earnings of foreign subsidiaries is payable			8 years
Discrete net tax benefit recorded as a result of the 2017 Tax Cuts and Jobs Act		$ 545,000		$ 545,000