Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net income (loss)	$ 9,061	$ (1,217)	$ (2,846)	$ (2,041)	$ (225)	$ (364)	$ 4,998	$ (2,629)
Denominator:
Weighted average basic shares (in shares)	11,810			11,720			11,792	11,700
Dilutive effect of restricted stock units (in shares)	91			0			85	0
Weighted average diluted shares (in shares)	11,901			11,720			11,877	11,700
Income (loss) per share:
Basic (in dollars per share)	$ 0.77			$ (0.17)			$ 0.42	$ (0.22)
Diluted (in dollars per share)	$ 0.76			$ (0.17)			$ 0.42	$ (0.22)