Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Numerator:
Net income	$ 24,085	$ 1,162
Denominator:
Weighted average basic shares (in shares)	11,941	11,859
Dilutive effect of restricted stock units (in shares)	233	218
Weighted average diluted shares (in shares)	12,174	12,077
Earnings per share:
Basic (in dollars per share)	$ 2.02	$ 0.10
Diluted (in dollars per share)	$ 1.98	$ 0.10