Note 10 - Concentrations

12 Months Ended

Dec. 31, 2023

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

(10) Concentrations

Two customers accounted for approximately 71% and 21% of total revenues in 2023. Four customers accounted for approximately 44%, 27%, 12% and 12% of total revenues in 2022. Two customers accounted for approximately 58% and 11%, and three customers each accounted for approximately 10% of accounts receivable on December 31, 2023. Three customers accounted for approximately 39%, 11% and 10% of accounts receivable on December 31, 2022.