CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Cash Flows From Operating Activities
Net (loss) income	$ (147,531)	$ 1,655,021
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization	111,044	112,017
Deferred tax expense	0	31,704
Stock compensation expense	175,962	595,677
Changes in bad debt allowance	(169,432)	321,970
Changes in operating assets and liabilities:
Accounts receivable	54,878,677	(941,413)
Advance to suppliers	4,762,930	(2,181,584)
Inventories	(92,918)	153,740
Other current assets	14,116	35,452
Operating lease right-of-use assets, net	107,357	0
Accounts payable	(3,617,093)	(295,656)
Advance from customers	9,176	23,395
Accrued liabilities and other payables	(539,215)	(113,806)
Operating lease liabilities, non-current	(107,357)	0
Taxes payable	(104,997)	215,554
Net Cash Provided by (Used in) Operating Activities	55,280,719	(387,929)
Cash Flows From Investing Activities
Purchase of property and equipment	(24,911)	(11,499)
Net Cash Used in Investing Activities	(24,911)	(11,499)
Cash Flows From Financing Activities
Proceeds from line of credit and bank loan	11,796,018	15,923,479
Repayment to line of credit and bank loan	(18,044,180)	(20,125,597)
Net Cash Used in Financing Activities	(6,248,162)	(4,202,118)
Net Increase (Decrease) in Cash and Cash Equivalents	49,007,646	(4,601,546)
Cash and Cash Equivalents, Beginning of Period	890,408	5,722,716
Cash and Cash Equivalents, End of Period	49,898,054	1,121,170
Cash paid during the period for:
Income tax payments	78	0
Interest paid	$ 36,143	$ 31,582

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