Stock-Based Compensation - Schedule of Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs)	12 Months Ended
	Sep. 30, 2021 $ / shares shares
Number of Restricted Stock Units
Outstanding Beginning Balance (in shares) | shares	154,034
Granted (in shares) | shares	104,550
Vested (in shares) | shares	(55,748)
Forfeited (in shares) | shares	(2,917)
Outstanding Ending Balance (in shares) | shares	199,919
Weighted Average Grant Value Per Share
Outstanding Beginning Balance (in dollars per share) | $ / shares	$ 35.37
Granted (in dollars per share) | $ / shares	24.08
Vested (in dollars per share) | $ / shares	32.50
Forfeited (in dollars per share) | $ / shares	30.85
Outstanding Ending Balance (in dollars per share) | $ / shares	$ 30.34