Quarterly report pursuant to Section 13 or 15(d)

Warrant Liabilities - Summary of Warrants Outstanding and Fair Values (Details)

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Warrant Liabilities - Summary of Warrants Outstanding and Fair Values (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Mar. 29, 2020
Mar. 31, 2019
Mar. 29, 2020
Mar. 31, 2019
Loss (Gain) on Change in Fair Value of Warrant Liability $ (1,332) $ 1,932 $ (81) $ 547
Warrant [Member]        
Warrant liability, fair value outstanding beginning     4,125,200 4,260,785
Warrant liability, fair value outstanding ending 4,125,200 4,260,785 4,125,200 4,260,785
Fair Value per Share, beginning     $ 0.49 $ 0.82
Fair Value per Share, ending $ 0.47 $ 0.95 $ 0.47 $ 0.95
Fair value of warrant liability, beginning     $ 2,036 $ 3,500
Loss (Gain) on Change in Fair Value of Warrant Liability     (81) 547
Fair value of warrant liability, ending $ 1,955 $ 4,047 $ 1,955 $ 4,047