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Revenue (Details) - Schedule of revenue by products and services - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenue by products and services:    
Total revenue $ 2,086,452 $ 2,485,204
Products [Member]    
Revenue by products and services:    
Total revenue 1,618,896 1,874,350
Services [Member]    
Revenue by products and services:    
Total revenue $ 467,556 $ 610,854