Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income	$ 1,547	$ 7,804
Denominator:
Denominator for basic net income (loss) per share - weighted-average outstanding shares (in shares)	13,306
Effect of dilutive securities:
Stock options and restricted stock (in shares)	970	1,546
Denominator for diluted net income (loss) per share - weighted-average outstanding shares (in shares)	14,276	14,295
Net income per share - basic (in dollars per share)	$ 0.12	$ 0.61
Net income per share - diluted (in dollars per share)	$ 0.11	$ 0.55