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14.STOCK-BASED COMPENSATION - Schedule of Restricted Stock Summary (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Class of Stock [Line Items]    
Number of Option Shares, Beginning Balance 1,418,938 1,547,029
Number of Option Shares, Ending Balance 1,970,458 1,418,938
Weighted Average Outstanding at Beginning Balance $ 13.03 $ 30.72
Weighted Average Exercise, Granted 0 0
Weighted Average Exercise, Expired 8 39.38
Weighted Average Exercise Ending Balance $ 13.49 $ 13.03
Restricted [Member]    
Class of Stock [Line Items]    
Number of Option Shares, Beginning Balance 5,448,548 10,995
Number of Shares, Granted 3,880,552 7,306,250
Number of Shares, Vested (3,813,617) (1,757,938)
Number of Shares, Cancelled (40,000)  
Number of Shares, Forfeited (4,048) (110,759)
Number of Option Shares, Ending Balance 5,471,435 5,448,548
Weighted Average Outstanding at Beginning Balance $ 4.93 $ 27.73
Weighted Average Exercise, Granted 3.65 7.18
Weighted Average Exercise, Vested 4.58 13.37
Weighted Average Exercise, Expired 29.34 15.27
Weighted Average Exercise Ending Balance $ 4.18 $ 4.93
Aggregate Intrinsic Value Outstanding at Beginning $ 17,326 $ 0
Aggregate Intrinsic Value Outstanding at Ending $ 20,846 $ 17,326