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14. STOCK-BASED COMPENSATION - Schedule of Restricted Stock Summary (Details)
$ / shares in Units, $ in Thousands
 6 Months Ended
Mar. 31, 2024
USD ($)
$ / shares
shares
Class of Stock [Line Items]  
Weighted Average Exercise Price, Beginning Balance $ 13.49
Weighted Average Exercise Price, Expired 18.2
Weighted Average Exercise Price, Ending Balance $ 6.12
Restricted [Member]  
Class of Stock [Line Items]  
Number of Option Shares, Beginning Balance | shares 5,471,435
Number of Shares, Granted | shares 209,972
Number of Shares, Vested | shares (3,763,915)
Number of Shares, Forfeited | shares (2,504)
Number of Option Shares, Ending Balance | shares 1,914,988
Weighted Average Exercise Price, Beginning Balance $ 4.18
Weighted Average Exercise Price, Granted 3.81
Weighted Average Exercise, Vested 3.86
Weighted Average Exercise Price, Expired 4.15
Weighted Average Exercise Price, Ending Balance $ 4.78
Aggregate Intrinsic Value Outstanding at Beginning | $ $ 20,846
Aggregate Intrinsic Value Outstanding at Ending | $ $ 40,617