00000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 00000002 - Statement - Unaudited Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 00000003 - Statement - Unaudited Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00000004 - Statement - Unaudited Condensed Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 00000005 - Statement - Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 00000006 - Statement - Unaudited Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 00000007 - Disclosure - 1. Nature of business and organization link:presentationLink link:calculationLink link:definitionLink 00000008 - Disclosure - 2. Basis of Presentation and Summary of signficiant accounting policies link:presentationLink link:calculationLink link:definitionLink 00000009 - Disclosure - 3. Variable interest entity link:presentationLink link:calculationLink link:definitionLink 00000010 - Disclosure - 4. Accounts receivable, net link:presentationLink link:calculationLink link:definitionLink 00000011 - Disclosure - 5. Inventories, net link:presentationLink link:calculationLink link:definitionLink 00000012 - Disclosure - 6. Prepayments and other current assets link:presentationLink link:calculationLink link:definitionLink 00000013 - Disclosure - 7. Loans payable link:presentationLink link:calculationLink link:definitionLink 00000014 - Disclosure - 8. Convertible notes link:presentationLink link:calculationLink link:definitionLink 00000015 - Disclosure - 9. Related party transactions link:presentationLink link:calculationLink link:definitionLink 00000016 - Disclosure - 10. Income taxes link:presentationLink link:calculationLink link:definitionLink 00000017 - Disclosure - 11. Earnings per share link:presentationLink link:calculationLink link:definitionLink 00000018 - Disclosure - 12. Equity link:presentationLink link:calculationLink link:definitionLink 00000019 - Disclosure - 13. Series A Convertible Preferred Stock link:presentationLink link:calculationLink link:definitionLink 00000020 - Disclosure - 14. Warrant liabilities link:presentationLink link:calculationLink link:definitionLink 00000021 - Disclosure - 15. Concentration of risk link:presentationLink link:calculationLink link:definitionLink 00000022 - Disclosure - 16. Commitments and contingencies link:presentationLink link:calculationLink link:definitionLink 00000023 - Disclosure - 17. Subsequent events link:presentationLink link:calculationLink link:definitionLink 00000024 - Disclosure - 2. Basis of Presentation and Summary of signficiant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 00000025 - Disclosure - 2. Basis of Presentation and Summary of signficiant accounting policies (Tables) link:presentationLink link:calculationLink link:definitionLink 00000026 - Disclosure - 3. Variable interest entity (Tables) link:presentationLink link:calculationLink link:definitionLink 00000027 - Disclosure - 4. Accounts receivable (Tables) link:presentationLink link:calculationLink link:definitionLink 00000028 - Disclosure - 6. Prepayments and other current assets (Tables) link:presentationLink link:calculationLink link:definitionLink 00000029 - Disclosure - 8. Convertible notes (Tables) link:presentationLink link:calculationLink link:definitionLink 00000030 - Disclosure - 10. Income taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 00000031 - Disclosure - 11. Earnings per share (Tables) link:presentationLink link:calculationLink link:definitionLink 00000032 - Disclosure - 14. Warrant liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 00000033 - Disclosure - 16. Commitments and contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 00000034 - Disclosure - 2. Basis of Presentation and Summary of signficiant accounting policies (Details - Fair value) link:presentationLink link:calculationLink link:definitionLink 00000035 - Disclosure - 2. Basis of Presentation and Summary of signficiant accounting policies (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000036 - Disclosure - 3. Variable interest entity (Details - Carrying amount of assets and liabilities) link:presentationLink link:calculationLink link:definitionLink 00000037 - Disclosure - 3. Variable interest entity (Details - VIE results of operations link:presentationLink link:calculationLink link:definitionLink 00000038 - Disclosure - 3. Variable interest entity (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000039 - Disclosure - 4. Accounts receivable (Details) link:presentationLink link:calculationLink link:definitionLink 00000040 - Disclosure - 4. Accounts receivable (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000041 - Disclosure - 5. Inventories (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000042 - Disclosure - 6. Prepayments and other current assets (Details) link:presentationLink link:calculationLink link:definitionLink 00000043 - Disclosure - 7. Loans payable (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000044 - Disclosure - 8. Convertible notes (Details - Assumptions) link:presentationLink link:calculationLink link:definitionLink 00000045 - Disclosure - 8. Convertible notes (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000046 - Disclosure - 9. Related party transactions (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000047 - Disclosure - 10. Income taxes (Details - Provision for income taxes) link:presentationLink link:calculationLink link:definitionLink 00000048 - Disclosure - 10. Income taxes (Details - Reconcilation of effective income tax rate) link:presentationLink link:calculationLink link:definitionLink 00000049 - Disclosure - 10. Income taxes (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000050 - Disclosure - 11. Earnings per share (Details) link:presentationLink link:calculationLink link:definitionLink 00000051 - Disclosure - 12. Equity (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000052 - Disclosure - 13. Series A Convertible Preferred Stock (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000053 - Disclosure - 14. Warrant liabilities (Details - Assumptions) link:presentationLink link:calculationLink link:definitionLink 00000054 - Disclosure - 14. Warrant liabilities (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000055 - Disclosure - 15. Concentration of risk (Details Narrative) link:presentationLink link:calculationLink link:definitionLink 00000056 - Disclosure - 16. Commitments and contingencies (Details - Lease cost) link:presentationLink link:calculationLink link:definitionLink 00000057 - Disclosure - 16. Commitments and contingencies (Details - Lease maturity) link:presentationLink link:calculationLink link:definitionLink 00000058 - Disclosure - 16. Commitments and contingencies (Details Narrative) link:presentationLink link:calculationLink link:definitionLink