Note 6 - Revenue Recognition - Disaggregated Revenue (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net Sales	$ 3,626,177	$ 3,657,978	$ 7,518,535	$ 7,088,846
Cosmetic Ingredients [Member]
Net Sales	1,393,963	1,855,776	3,471,878	3,486,372
Pharmaceuticals [Member]
Net Sales	1,238,384	1,149,179	2,463,597	2,292,487
Medical [Member]
Net Sales	962,080	620,748	1,519,875	1,236,774
Industrial And Other [Member]
Net Sales	$ 31,750	$ 32,275	$ 63,185	$ 73,213