Warrant Liabilities - Summary of Warrants Outstanding and Fair Values (Details) (Parenthetical) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
Sep. 27, 2020 |
Sep. 29, 2019 |
Jun. 12, 2019 |
Sep. 30, 2018 |
Oct. 01, 2017 |
Aug. 26, 2016 |
|||
| Proceeds from warrant exercised | $ 72 | |||||||
| Fair value of warrant liability | $ (75) | |||||||
| Exercise price | $ 0.85 | $ 1.50 | ||||||
| Warrant [Member] | ||||||||
| Proceeds from warrant exercised | $ 72 | |||||||
| Fair value of warrant liability | $ (48) | |||||||
| Warrant buyback and cancellation | 88,081 | |||||||
| Exercise price | [1] | $ 1.50 | $ 1.50 | $ 1.50 | $ 1.50 | $ 1.50 | ||
| ||||||||
| X | ||||||||||
- Definition Number of warrants repurchased or cancelled. No definition available.
|
| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| 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
|
| X | ||||||||||
- Definition The cash inflow associated with the amount received from holders exercising their stock warrants. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|