XML 60 R42.htm IDEA: XBRL DOCUMENT v3.23.3
Note 1 - Summary of Significant Accounting Policies - Reconciliation of Changes in the Allowance for Doubtful Accounts (Details) - USD ($)
12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Beginning balance $ 371,271 $ 242,010
Provision for credit losses 54,211 492,875
Recoveries of accounts written off 181,676 135,143
Accounts written off (451,994) (498,757)
Ending balance $ 155,164 $ 371,271