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Revenue Recognition (Details 2) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Sales to three major customers $ 1,278,822 $ 176,081 $ 1,904,641 $ 1,027,354
Total percentage of revenue 56.20% 11.11% 53.97% 30.87%
Company A        
Sales to largest customers $ 191,421 $ 176,081 $ 489,571 $ 290,372
Company B        
Sales to largest customers 702,597 0 702,597 213,322
Company C        
Sales to three major customers     0 106,161
Sales to largest customers 190,557 0 518,226 523,660
Company D        
Sales to largest customers $ 194,247 $ 0 $ 194,247 $ 0