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Earnings Per Share (Tables)
12 Months Ended
Sep. 30, 2021
Earnings Per Share [Abstract]  
Schedule of earnings per share, basic and diluted
The computation of basic and diluted net income per share is as follows:

Year Ended September 30,
202120202019
Numerator:
Net income (loss)$50,949 $(3,774)$(19,260)
Denominator:
Basic weighted average shares outstanding33,333,557 33,612,263 33,062,976 
Dilutive impact of stock options, RSUs and RSAs1,690,551 — — 
Diluted weighted average shares outstanding35,024,108 33,612,263 33,062,976 
Basic income (loss) per common share$1.53 $(0.11)$(0.58)
Diluted income (loss) per common share$1.45 $(0.11)$(0.58)
Stock options, RSUs and RSAs excluded from income (loss) per diluted share because their effect would have been anti-dilutive
420,454 3,526,055 4,621,199