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Revenues - Schedule of Geographical Revenue Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Sales in PRC $ 21,430,226 $ 26,496,302
Sub-total 9,915,725 13,507,801
Total Revenue 31,345,951 40,004,103
Republic of China (ROC, or Taiwan) [Member] [Member]    
Sub-total 5,178,407 6,697,864
South Korea [Member]    
Sub-total 4,654,133 6,725,155
Others [Member]    
Sub-total $ 83,185 $ 84,782