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11. STOCK-BASED COMPENSATION - Schedule of Restricted Stock Summary (Details) $ / shares in Units, $ in Thousands | 9 Months Ended
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Jun. 30, 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 | 1,307,335
Weighted Average Exercise Price, Beginning Balance | $ 13.03
Weighted Average Exercise, Granted | 0
Weighted Average Exercise, Expired | 8
Weighted Average Exercise Price, Ending Balance | $ 13.34
Restricted [Member] |
Class of Stock [Line Items] |
Number of Option Shares, Beginning Balance | shares | 5,448,548
Number of Shares, Granted | shares | 420,552
Number of Shares, Vested | shares | (1,628,664)
Number of Shares, Cancelled | shares | (40,000)
Number of Shares, Forfeited | shares | (4,048)
Number of Option Shares, Ending Balance | shares | 4,196,388
Weighted Average Exercise Price, Beginning Balance | $ 4.93
Weighted Average Exercise, Granted | 2.37
Weighted Average Exercise, Vested | 4.46
Weighted Average Exercise, Expired | 29.34
Weighted Average Exercise Price, Ending Balance | $ 4.75
Aggregate Intrinsic Value Outstanding at Beginning | $ | $ 17,326
Aggregate Intrinsic Value Outstanding at Ending | $ | $ 18,003

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