Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2019

Receivables [Abstract]

Schedule of accounts receivable, net

	As of December 31
	2019			2018
Accounts receivable	$	13,090,853		$	15,871,970
Less: Allowance for doubtful accounts		(1,669,658	)		(392,533	)
Total accounts receivable, net	$	11,421,195		$	15,479,437

Schedule of movement of allowance for doubtful accounts

	As of December 31,
	2019			2018			2017
Beginning balance	$	392,533		$	36,285		$	15,083
Provision for doubtful accounts		3,276,200			372,635			19,440
Written-off		(1,984,244	)		-			-
Foreign currency translation adjustments		(14,831	)		(16,387	)		1,762
Ending balance	$	1,669,658		$	392,533		$	36,285