Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Numerator:
Net income (loss)	$ (2,535)	$ 878	$ (3,859)	$ 1,992
Denominator:
Denominator for basic net income per share - weighted-average outstanding shares (in shares)	14,493	14,386	14,493	14,386
Effect of dilutive securities:
Stock options and restricted stock (in shares)	0	68	0	68
Denominator for diluted net income per share - weighted-average outstanding shares (in shares)	14,493	14,454	14,493	14,454
Net income (loss) per share - basic (in dollars per share)	$ (0.17)	$ 0.06	$ (0.27)	$ 0.14
Net income (loss) per share - diluted (in dollars per share)	$ (0.17)	$ 0.06	$ (0.27)	$ 0.14
Antidilutive securities (in shares)	70		70