Basis of Accounting, Policy [Policy Text Block]

Basis of presentation

The condensed consolidated interim financial statements are prepared and presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).

The condensed consolidated interim financial information as of September 30, 2015 and for the nine and three months ended September 30, 2015 and 2014 have been prepared without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures, which are normally included in annual consolidated financial statements prepared in accordance with U.S. GAAP, have been omitted pursuant to those rules and regulations. The condensed consolidated interim financial information should be read in conjunction with the financial statements and the notes thereto, included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, previously filed with the SEC (the “2014 Form 10-K”).

In the opinion of management, all adjustments (which include normal recurring adjustments) necessary to present a fair statement of the Company’s consolidated financial position as of September 30, 2015, its consolidated results of operations for the nine and three months ended September 30, 2015 and 2014, and its consolidated cash flows for the nine months ended September 30, 2015 and 2014, as applicable, have been made. The interim results of operations are not necessarily indicative of the operating results for the full fiscal year or any future periods.

Use of Estimates, Policy [Policy Text Block]

Use of estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the related disclosure of contingent assets and liabilities at the date of these condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. The Company continually evaluates these estimates and assumptions based on the most recently available information, historical experience and various other assumptions that the Company believes to be reasonable under the circumstances. Since the use of estimates is an integral component of the financial reporting process, actual results could differ from those estimates.

Advertising Costs, Policy [Policy Text Block]

Advertising costs

Advertising costs for the Company’s own brand building are not includable in cost of sales, they are expensed when incurred and are included in “sales and marketing expenses” in the statements of operations and comprehensive loss. For the nine months ended September 30, 2015 and 2014, advertising expenses for the Company’s own brand building were approximately US$1,740,000 and US$2,412,000, respectively. For the three months ended September 30, 2015 and 2014, advertising expenses for the Company’s own brand building were approximately US$520,000 and US$1,439,000, respectively.

New Accounting Pronouncements, Policy [Policy Text Block]

Recent accounting standards

In August 2015, the FASB issued Accounting Standards Update (“ASU”) No. 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date”. The amendments in this ASU defer the effective date of ASU No. 2014-09 for all entities by one year. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance in this ASU to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. All other entities should apply the guidance in this ASU to annual reporting periods beginning after December 15, 2018, and interim reporting periods within annual reporting periods beginning after December 15, 2019. All other entities may apply the guidance in this ASU earlier as of an annual reporting period beginning after December 15, 2016, including interim reporting periods within that reporting period. All other entities also may apply the guidance in this ASU earlier as of an annual reporting period beginning after December 15, 2016, and interim reporting periods within annual reporting periods beginning one year after the annual reporting period in which the entity first applies the guidance in this ASU. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial position and results of operations.

In September 2015, the FASB issued ASU No. 2015-16, “Business Combination (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments”. The amendments in this ASU require that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The amendments in this ASU require that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date, i.e., to simplify the accounting for adjustments made to provisional amounts recognized in a business combination, the amendments in this ASU eliminate the requirement to retrospectively account for those adjustments. The amendments in this ASU require an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. For public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. The amendments in this ASU should be applied prospectively to adjustments to provisional amounts that occur after the effective date of ASU with earlier application permitted for financial statements that have not been issued. For all other entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2016, and interim periods within fiscal years beginning after December 15, 2017. The amendments in this ASU should be applied prospectively to adjustments to provisional amounts that occur after the effective date of this Update with earlier application permitted for financial statements that have not yet been made available for issuance. The Board decided that the only disclosures required at transition should be the nature of and reason for the change in accounting principle. An entity should disclose that information in the first annual period of adoption and in the interim periods within the first annual period if there is a measurement-period adjustment during the first annual period in which the changes are effective. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial position and results of operations.

Other accounting standards that have been issued or proposed by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Company’s consolidated financial statements upon adoption.