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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Cost of revenue.        
Purchases from related parties $ 685,481 $ 104,813 $ 2,165,850 $ 390,196
General and administrative expense.        
Purchases from related parties $ 24,231 $ 24,231 $ 72,693 $ 52,959