Note 2 - Concentration of Credit Risk and Major Customers	12 Months Ended
Dec. 31, 2023
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	NOTE 2. CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash and accounts receivable. We maintain our excess cash balances in checking accounts at two high-credit quality financial institutions. These accounts may at times exceed federally insured limits. We grant credit to customers in the normal course of business and do not require collateral on our accounts receivable. We have certain customers whose net sales individually represented 10% or more of net sales, or whose accounts receivable balances individually represented 10% or more of total accounts receivable. Two customers, individually, accounted for at 25.7% and 10.3%, respectively, of net sales for the year ended December 31, 2023, and one customer accounted for 26.9% of net sales for the year ended December 31, 2022. Two customers, individually, accounted 22.1% and 12.7%, respectively, of accounts receivable as of December 31, 2023 and 21.3% and 13.8% of accounts receivable as of December 31, 2022.

Note 2 - Concentration of Credit Risk and Major Customers

12 Months Ended

Dec. 31, 2023

Concentration Risk Disclosure [Text Block]

NOTE 2. CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS

Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash and accounts receivable. We maintain our excess cash balances in checking accounts at two high-credit quality financial institutions. These accounts may at times exceed federally insured limits. We grant credit to customers in the normal course of business and do not require collateral on our accounts receivable.

We have certain customers whose net sales individually represented 10% or more of net sales, or whose accounts receivable balances individually represented 10% or more of total accounts receivable. Two customers, individually, accounted for at 25.7% and 10.3%, respectively, of net sales for the year ended December 31, 2023, and one customer accounted for 26.9% of net sales for the year ended December 31, 2022. Two customers, individually, accounted 22.1% and 12.7%, respectively, of accounts receivable as of December 31, 2023 and 21.3% and 13.8% of accounts receivable as of December 31, 2022.