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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Cash flows from operating activities    
Net loss from continuing operations $ (3,933,240) $ (6,064,530)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 55,086 43,610
Allowance for inventory valuation and obsolescence loss 180,387
Stock based compensation for nonemployees 22,314 28,800
Loss on disposal of investment 396,025
Loss on investment in equity securities 210,086 2,805,577
Other non-cash income and expenses (5,747)
Deferred tax (80,692) (366,947)
Changes in operating assets and liabilities:    
Decrease (increase) in accounts receivable (120,739) 3,420
Decrease (increase) in prepaid expenses and deposits (27,617) (136)
Decrease (increase) in due from related parties (282,092) 7,807
Decrease (increase) in inventory 1,306 14,798
Increase (decrease) in accounts payable 50,244 (98,350)
Increase (decrease) in notes payable (4,861)
Increase (decrease) in accrued expenses and other current liabilities 801,434 506,929
Increase (decrease) in advanced from others 1,909 287,755
Increase (decrease) in due to related parties 178,083 1,354,324
Net cash used in operating activities (3,134,526) (900,531)
Cash flows from investing activities    
Proceeds from sale of investment (156,372)
Loan to affiliates (17,496)
Long-term equity investment (17,801)
Net cash used in investing activities (35,297) (156,372)
Cash flows from financing activities    
Issuance of common stock for acquisition 531,147
Issuance of common shares for stock-based compensation 552,962
Proceeds from short-term bank loan 1,000,000
Proceeds from convertible notes 1,207,500 800,000
Proceeds from short-term borrowing from third parties 657,466 181,272
Borrowings from related parties 211,020
Repayment of borrowings from related parties (820,000) (257,000)
Repayment of long-term bank loans (41,586) (38,428)
Net cash provided by financing activities 3,087,489 896,864
Effect of exchange rate changes on cash and cash equivalents (4) (4,016)
Net decrease in cash and cash equivalents (82,338) (164,055)
Cash and cash equivalents    
Beginning 242,781 406,836
Ending 160,443 242,781
Cash paid during the year for:    
Interest expense paid 167,126 210,536
Income taxes paid 2,050 1,850
Non-cash financing and investing activities    
Common shares issued for employees and consultants 325,740 80,000
Capital contribution from related parties under common control $ 7,872,340