Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Current assets:
Allowance for doubtful accounts	$ 381	$ 362
Stockholders’ equity:
Preferred stock, par value (in USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	118,161,000	117,472,000
Common stock, shares outstanding	118,161,000	117,472,000