Condensed Consolidated Statements of Comprehensive (Loss) Income - Unaudited - USD ($)		3 Months Ended		6 Months Ended
		Jun. 25, 2019	Jun. 26, 2018	Jun. 25, 2019	Jun. 26, 2018
Statement of Comprehensive Income [Abstract]
Net loss		$ (6,398,000)	$ (1,562,000)	$ (24,725,000)	$ (1,162,000)
Other comprehensive income(loss), net of tax:
Change in unrealized gain (loss) on cash flow hedge	[1]	1,000	0	(700,000)	0
Other comprehensive income(loss), net of tax		1,000	0	(700,000)	0
Comprehensive loss		(6,397,000)	(1,562,000)	(25,425,000)	(1,162,000)
Change in cash flow hedging, tax		$ 0	$ 0	$ 0	$ 0

[1] Change in unrealized gain (loss) on cash flow hedges is presented net of tax, which was zero for the 13 weeks and 26 weeks ended June 25, 2019. There was no cash flow hedging activity for the 13 weeks and 26 weeks ended June 26, 2018.