Annual report pursuant to Section 13 and 15(d)

Note 16 - Segments (Details Textual)

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Note 16 - Segments (Details Textual)
 12 Months Ended
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Revenues, Total $ 915,013 $ 657,826
Number of Primary Types of Products Sold 2  
Depreciation, Depletion and Amortization, Nonproduction, Total [1] $ 70,393 144,512
Selling, General and Administrative Expenses [Member]    
Depreciation, Depletion and Amortization, Nonproduction, Total 70,393 $ 144,512
Intersegment Eliminations [Member]    
Revenues, Total $ 0  
[1] Depreciation and amortization are reflected in selling, general and administrative expenses ($70,393 and $144,512 for the years ended December 31, 2020 and 2019, respectively).