Prepayments, Deposits and Other Assets, Net (Tables)

12 Months Ended

Dec. 31, 2018

Prepayments Deposits And Other Assets Net [Abstract]

Schedule of prepayments, deposits and other assets, net

	As of December 31,
	2018			2017
Advances to suppliers	$	138,464		$	310,808
Security deposits *		857,676			624,093
Advances to employees		248,191			262,682
Prepaid expense		222,862			12,772
Loan to others **		47,997			908,453
Deferred offering cost		400,640			-
Others		109,721			100,777
		2,025,551			2,219,585
Less: Long term portion		(865,498	)		(624,093	)
Allowance for doubtful accounts		(14,047	)		(19,422	)
Prepayments, deposits and other assets – current portion	$	1,146,006		$	1,576,070

* Security deposits represent contract fulfillment deposits required by customer for specific projects, rent deposits and etc.

** The Company had unsecured, non-interest-bearing loan receivables from various vendors. The maturity of these loans are generally within one or two years.

Schedule of allowance for doubtful accounts

	As of December 31,
	2018			2017		2016
Beginning balance	$	19,422		$	10,648	$	-
(Recovery) provision for doubtful accounts		(4,510	)		7,760		11,129
Foreign currency translation adjustments		(865	)		1,014		(481	)
Ending balance	$	14,047		$	19,422	$	10,648