Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Segments (Details Textual)

v3.19.1
Note 15 - Segments (Details Textual)
3 Months Ended
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Revenues, Total $ 136,032 $ 276,445
Number of Primary Types of Products Sold 2  
Depreciation, Depletion and Amortization, Nonproduction, Total [1] $ 36,779 37,987
Selling, General and Administrative Expenses [Member]    
Depreciation, Depletion and Amortization, Nonproduction, Total 36,779 $ 37,987
Intersegment Eliminations [Member]    
Revenues, Total $ 0  
[1] Depreciation and amortization is reflected in selling, general and administrative expenses ($36,779 and $37,987 for the three-month periods ended March 31, 2019 and 2018, respectively).