Note 4 - Major Customers and Suppliers (Details Textual) - Revenue Benchmark [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Customer Concentration Risk [Member]
Number of Major Customers	2	2	3	3
Customer Concentration Risk [Member] | Two Major Customers [Member]
Concentration Risk, Percentage	90.00%
Customer Concentration Risk [Member] | Three Major Customers [Member]
Concentration Risk, Percentage		86.00%	86.00%
Customer Concentration Risk [Member] | Four Major Customers [Member]
Concentration Risk, Percentage				67.00%
Product Concentration Risk [Member] | Basic Natural and Chemically Modified Cyclodexterins [Member]
Concentration Risk, Percentage			99.00%
Product Concentration Risk [Member] | Cyclodexterin Complexes [Member]
Concentration Risk, Percentage			1.00%