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Note 3 - Accounts Receivable
6 Months Ended
Jun. 30, 2023
Notes to Financial Statements  
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

3.  ACCOUNTS RECEIVABLE 

 

The Company establishes an allowance for doubtful accounts based upon factors surrounding the credit risk of specific customers, historical trends and other information. The reserve for doubtful accounts was $181,954, $143,631, and $75,930 at June 30, 2023 December 31, 2022  and December 31, 2021, respectively.