Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2018

Receivables [Abstract]

Schedule of accounts receivable, net

	As of December 31
	2018			2017
Accounts receivable	$	15,871,970		$	13,107,350
Less: Allowance for doubtful accounts		(392,533	)		(36,285	)
Total accounts receivable, net	$	15,479,437		$	13,071,065

Schedule of movement of allowance for doubtful accounts

	As of December 31,
	2018			2017		2016
Beginning balance	$	36,285		$	15,083	$	8,068
Provision for doubtful accounts		372,635			19,440		7,883
Foreign currency translation adjustments		(16,387	)		1,762		(868	)
Ending balance	$	392,533		$	36,285	$	15,083