Annual report pursuant to Section 13 and 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
 12 Months Ended
Jun. 12, 2019
Sep. 29, 2019
Sep. 30, 2018
Gain on Change in Fair Value of Warrants   $ 1,344 $ 95
Warrant [Member]      
Warrant liability, fair value outstanding beginning   4,260,785 4,323,135
Reclassification to additional paid in capital upon exercise of warrants 47,504 (47,504) [1] (62,350) [2]
Warrant buyback and cancellation [3]   (88,081)  
Warrant liability, fair value outstanding ending   4,125,200 4,260,785
Fair Value per Share, beginning   $ 0.82 $ 0.87
Fair Value per Share, ending   $ 0.49 $ 0.82
Fair value of warrant liability, beginning   $ 3,500 $ 3,607
Reclassification to additional paid in capital for correction to underwriter warrants outstanding [4]     41
Gain on Change in Fair Value of Warrants   (1,344) (95)
Reclassification to additional paid in capital upon exercise of warrants   (48) [1] (53) [2]
Warrant buyback and cancellation [3]   (72)  
Fair value of warrant liability, ending   $ 2,036 $ 3,500
[1] Exercise of warrants for gross proceeds of $72 thousand and a warrant liability fair market value of $48 thousand as of the exercise date.
[2] Warrants exercised on September 17, 2018 for gross proceeds of $93.5 thousand. The fair market value of the warrants as of the exercise date was $53 thousand and was reclassed to additional paid in capital.
[3] Buyback of 88,081 warrants at $0.85 per warrant for a total consideration of ($75) thousand and a warrant liability fair market value of $72 thousand.
[4] Correction to Additional Paid in Capital and Warrant Liability for 197,935 outstanding warrants issued to underwriters on August 26, 2016. Total warrants were incorrectly reflected as 4,125,200 and should have been 4,323,135.