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Note 1 - Summary of Significant Accounting Policies - Net Sales by Geographical Region (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Revenue $ 5,070,446 $ 3,305,534 $ 14,071,984 $ 11,961,062
Reportable Geographical Components [Member] | Americas [Member]        
Revenue 986,316 382,573 1,798,608 861,260
Reportable Geographical Components [Member] | Asia Pacific [Member]        
Revenue 891,058 895,696 2,031,013 2,944,449
Reportable Geographical Components [Member] | Europe [Member]        
Revenue 2,933,092 1,903,930 8,944,536 6,651,065
Reportable Geographical Components [Member] | Middle East and Africa [Member]        
Revenue $ 259,980 $ 123,335 $ 1,297,827 $ 1,504,288