Note 3 - Major Customers and Suppliers	3 Months Ended
Mar. 31, 2023
Notes to Financial Statements
Major Customers and Suppliers Disclosure [Text Block]	(3) MAJOR CUSTOMERS AND SUPPLIERS: Our revenues are derived primarily from chemical supply and pharmaceutical companies located primarily in the United States. For the three months ended March 31, 2023 three major customers accounted for 76% of total revenues. For the three months ended March 31, 2022, four major customers accounted for 75% of total revenues. There were no inventory purchases during the three months ended March 31, 2023. Substantially all inventory purchases were from three vendors in 2022 and 2021. These vendors are located primarily outside the United States. We have three sources for our Aquaplex® products. There are multiple sources for our Trappsol® products. For the three months ended March 31, 2023, the product mix of our revenues consisted of 94% basic natural and chemically modified cyclodextrins and 6% cyclodextrin complexes. For the three months ended March 31, 2022 the product mix of our revenues consisted of 99.7% basic natural and chemically modified cyclodextrins and .3% cyclodextrin complexes.

Note 3 - Major Customers and Suppliers

3 Months Ended

Mar. 31, 2023

Major Customers and Suppliers Disclosure [Text Block]

(3) MAJOR CUSTOMERS AND SUPPLIERS:

Our revenues are derived primarily from chemical supply and pharmaceutical companies located primarily in the United States. For the three months ended March 31, 2023 three major customers accounted for 76% of total revenues. For the three months ended March 31, 2022, four major customers accounted for 75% of total revenues.

There were no inventory purchases during the three months ended March 31, 2023. Substantially all inventory purchases were from three vendors in 2022 and 2021. These vendors are located primarily outside the United States.

We have three sources for our Aquaplex® products. There are multiple sources for our Trappsol® products.

For the three months ended March 31, 2023, the product mix of our revenues consisted of 94% basic natural and chemically modified cyclodextrins and 6% cyclodextrin complexes. For the three months ended March 31, 2022 the product mix of our revenues consisted of 99.7% basic natural and chemically modified cyclodextrins and .3% cyclodextrin complexes.