Summary of Warrants Outstanding and Fair Values (Details) - USD ($) $ / shares in Units, $ in Thousands  | 
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jul. 03, 2022  | 
Jun. 27, 2021  | 
Jul. 03, 2022  | 
Jun. 27, 2021  | 
|
| Gain on change in fair value of warrant liability | $ (1,167) | $ (2,025) | ||
| Warrant [Member] | ||||
| Warrant liability, fair value outstanding, beginning | 4,125,200 | |||
| Fair value per share, beginning | $ 0.62 | |||
| Fair value of warrant liability, beginning | $ 2,544 | |||
| Gain on change in fair value of warrant liability | $ (2,025) | |||
| Warrant liability, fair value outstanding, ending | 4,125,200 | 4,125,200 | ||
| Fair value per share, ending | $ 0.13 | $ 0.13 | ||
| Fair value of warrant liability, ending | $ 519 | $ 519 | ||
| X | ||||||||||
- Definition Fair value of warrant liability, beginning. No definition available. 
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| X | ||||||||||
- Definition Fair Value per Share. ending. No definition available. 
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| X | ||||||||||
- Definition Number of warrants or rights outstanding. No definition available. 
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| X | ||||||||||
- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- Details 
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