11. STOCK-BASED COMPENSATION - Schedule of Option Summary (Details) - $ / shares	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Equity [Abstract]
Number of Option Shares, Beginning Balance	1,418,938
Options granted	73,500
Options expired	(44,600)
Options canceled/forfeited	(140,503)
Options exercised	0	(105,520)
Number of Option Shares, Ending Balance	1,307,335
Weighted Average Exercise Price, Beginning Balance	$ 19.11
Weighted Average Exercise Price, Options granted	3.19
Weighted Average Exercise Price, Options expired	6.05
Weighted Average Exercise Price, Options canceled/forfeited	12.55
Weighted Average Exercise Price, Options exercised	0
Weighted Average Exercise Price, Ending Balance	$ 19.37