Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Allowance for Doubtful Accounts Receivable, Current	$ 6,558	$ 8,057
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	1,000,000	1,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	125,000,000	125,000,000
Common stock, issued (in shares)	59,031,953	71,294,247
Common stock, outstanding (in shares)	45,570,084	57,832,378
Treasury stock, shares (in shares)	13,461,869	13,461,869