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Consolidated Balance Sheets (Parenthetical) - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Consolidated Balance Sheets    
Allowance for doubtful accounts, accounts receivable $ 47,199 $ 231,937
Ordinary shares, shares authorized 50,000,000 50,000,000
Ordinary shares, par value (in dollars per share) $ 0.001 $ 0.001
Ordinary shares, shares issued 11,675,216 11,675,216
Ordinary shares, shares outstanding 11,675,216 11,675,216