XML 19 R9.htm IDEA: XBRL DOCUMENT v3.22.2
Note 3 - Accounts Receivable
6 Months Ended
Jun. 30, 2022
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 $98,804 and $75,930 at June 30, 2022 and December 31, 2021, respectively.