Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Statement Of Financial Position [Abstract]
Allowances (accounts receivable)	$ 140	$ 81
Series A preferred stock, par value	$ 0.05	$ 0.05
Series A preferred stock, shares authorized	450,000	450,000
Series A preferred stock, shares issued	0	0
Series A preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.05	$ 0.05
Common stock, shares authorized	45,000,000	45,000,000
Common stock, shares issued	14,126,000	14,029,000
Common stock, shares outstanding	14,126,000	14,029,000