11. STOCK-BASED COMPENSATION - Schedule of Restricted Stock Summary (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Mar. 31, 2023 USD ($) $ / shares shares
Class of Stock [Line Items]
Number of Option Shares, Beginning Balance | shares	1,418,938
Number of Option Shares, Ending Balance | shares	1,289,682
Weighted Average Exercise Price, Beginning Balance	$ 13.03
Weighted Average Exercise, Granted	0
Weighted Average Exercise, Expired	0
Weighted Average Exercise Price, Ending Balance	$ 13.03
Restricted [Member]
Class of Stock [Line Items]
Number of Option Shares, Beginning Balance | shares	5,448,548
Number of Shares, Granted | shares	390,552
Number of Shares, Vested | shares	1,539,776
Number of Shares, Forfeited | shares	(4,048)
Number of Option Shares, Ending Balance | shares	4,295,276
Weighted Average Exercise Price, Beginning Balance	$ 4.93
Weighted Average Exercise, Granted	2.55
Weighted Average Exercise, Vested	4.59
Weighted Average Exercise, Expired	29.34
Weighted Average Exercise Price, Ending Balance	$ 4.81
Aggregate Intrinsic Value Outstanding at Beginning | $	$ 17,326
Aggregate Intrinsic Value Outstanding at Ending | $	$ 11,941