Summary of Warrants Outstanding and Fair Values (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2021	Jun. 28, 2020	Jun. 27, 2021	Jun. 28, 2020	Sep. 27, 2020	Sep. 29, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
(Gain) Loss on Change in Fair Value of Warrant Liability	$ (1,167)	$ 585	$ (2,025)	$ 504
Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant liability, fair value outstanding beginning			4,125,200	4,125,200
Fair Value per Share, beginning			$ 0.62	$ 0.49
Fair value of warrant liability, ending	$ 519	$ 2,540	$ 519	$ 2,540	$ 2,544	$ 2,036
(Gain) Loss on Change in Fair Value of Warrant Liability			$ (2,025)	$ 504
Warrant liability, fair value outstanding ending	4,125,200	4,125,200	4,125,200	4,125,200
Fair Value per Share, ending	$ 0.13	$ 0.62	$ 0.13	$ 0.62
Warrant liability, fair value outstanding ending	4,125,200	4,125,200	4,125,200	4,125,200	4,125,200	4,125,200
Fair Value per Share, ending	$ 0.13	$ 0.62	$ 0.13	$ 0.62	$ 0.62	$ 0.49