Trade and Bills Receivable, net (Tables)

3 Months Ended

Mar. 31, 2023

Trade And Bills Receivable Net [Abstract]

Schedule of trade and bills receivable

	December 31,			March 31,
	2022			2023
Trade receivable	$	23,422,733		$	25,501,022
Less: Allowance for credit losses		(2,274,513	)		(2,351,419	)
		21,148,220			23,149,603
Bills receivable		6,265,355			4,960,040
	$	27,413,575		$	28,109,643

Schedule of analysis of the allowance for doubtful accounts

Balance as at December 31, 2022	$	2,274,513
Adoption of ASC Topic 326		-
Balance as at January 1, 2023		2,274,513
Current period provision, net		78,995
Current period write off		(15,153	)
Foreign exchange adjustment		13,064
Balance as at March 31, 2023	$	2,351,419