001 - Statement - Unaudited Condensed Consolidated Balance Sheets link:presentationLink link:definitionLink link:calculationLink 002 - Statement - Unaudited Condensed Consolidated Balance Sheets (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 003 - Statement - Unaudited Condensed Consolidated Statements of Operations link:presentationLink link:definitionLink link:calculationLink 004 - Statement - Unaudited Condensed Consolidated Statements of Cash Flows link:presentationLink link:definitionLink link:calculationLink 005 - Statement - Unaudited Condensed Consolidated Statements of Changes in Shareholders’ Equity link:presentationLink link:definitionLink link:calculationLink 006 - Disclosure - Nature of business, basis of presentation and foreign currency financial statements link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - Significant accounting policies link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - Prepaid expenses link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - VAT receivable -net link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - Accounts payable link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - Stockholders' equity link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - Stock-based compensation link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - Transactions with related parties link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - Income Taxes link:presentationLink link:definitionLink link:calculationLink 015 - Disclosure - Segment reporting link:presentationLink link:definitionLink link:calculationLink 016 - Disclosure - Earnings per share link:presentationLink link:definitionLink link:calculationLink 017 - Disclosure - Commitments and contingencies link:presentationLink link:definitionLink link:calculationLink 018 - Disclosure - Subsequent events link:presentationLink link:definitionLink link:calculationLink 996000 - Disclosure - Accounting Policies, by Policy (Policies) link:presentationLink link:definitionLink link:calculationLink 996001 - Disclosure - Prepaid expenses (Tables) link:presentationLink link:definitionLink link:calculationLink 996002 - Disclosure - VAT receivable -net (Tables) link:presentationLink link:definitionLink link:calculationLink 996003 - Disclosure - Accounts payable (Tables) link:presentationLink link:definitionLink link:calculationLink 996004 - Disclosure - Stockholders' equity (Tables) link:presentationLink link:definitionLink link:calculationLink 996005 - Disclosure - Stock-based compensation (Tables) link:presentationLink link:definitionLink link:calculationLink 996006 - Disclosure - Segment reporting (Tables) link:presentationLink link:definitionLink link:calculationLink 996007 - Disclosure - Earnings per share (Tables) link:presentationLink link:definitionLink link:calculationLink 996008 - Disclosure - Nature of business, basis of presentation and foreign currency financial statements (Details) link:presentationLink link:definitionLink link:calculationLink 996009 - Disclosure - Prepaid expenses - Prepaid Expenses (Details) link:presentationLink link:definitionLink link:calculationLink 996010 - Disclosure - VAT receivable -net - VAT Receivable (Details) link:presentationLink link:definitionLink link:calculationLink 996011 - Disclosure - VAT receivable -net - Allowance of Uncollectible VAT Receivable (Details) link:presentationLink link:definitionLink link:calculationLink 996012 - Disclosure - Accounts payable - Accounts Payable (Details) link:presentationLink link:definitionLink link:calculationLink 996013 - Disclosure - Stockholders' equity (Details) link:presentationLink link:definitionLink link:calculationLink 996014 - Disclosure - Stockholders' equity - Capital Stock (Details) link:presentationLink link:definitionLink link:calculationLink 996015 - Disclosure - Stock-based compensation (Details) link:presentationLink link:definitionLink link:calculationLink 996016 - Disclosure - Stock-based compensation - Summary of Stock Option Activity Under the LTIP (Details) link:presentationLink link:definitionLink link:calculationLink 996017 - Disclosure - Stock-based compensation - Summary of Outstanding RSUs (Details) link:presentationLink link:definitionLink link:calculationLink 996018 - Disclosure - Transactions with related parties (Details) link:presentationLink link:definitionLink link:calculationLink 996019 - Disclosure - Income Taxes (Details) link:presentationLink link:definitionLink link:calculationLink 996020 - Disclosure - Segment reporting (Details) link:presentationLink link:definitionLink link:calculationLink 996021 - Disclosure - Segment reporting - Schedule of Segment Reporting (Details) link:presentationLink link:definitionLink link:calculationLink 996022 - Disclosure - Earnings per share - Basic and Diluted Earnings Per Share (Details) link:presentationLink link:definitionLink link:calculationLink 996023 - Disclosure - Commitments and contingencies (Details) link:presentationLink link:definitionLink link:calculationLink 996024 - Disclosure - Subsequent events (Details) link:presentationLink link:definitionLink link:calculationLink 000 - Document - Document And Entity Information link:presentationLink link:definitionLink link:calculationLink