001 - Document - DOCUMENT AND ENTITY INFORMATION link:presentationLink link:definitionLink link:calculationLink 002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:definitionLink link:calculationLink 003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical] link:presentationLink link:definitionLink link:calculationLink 004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:definitionLink link:calculationLink 005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:definitionLink link:calculationLink 006 - Disclosure - Description of business and summary of significant accounting policies link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - Inventory link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - Stockholders' equity link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - Earnings per share link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - Related parties link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - Fair value measurements link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - Subsequent events link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - Description of business and summary of significant accounting policies (Policies) link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - Stockholders' equity (Tables) link:presentationLink link:definitionLink link:calculationLink 015 - Disclosure - Earnings per share (Tables) link:presentationLink link:definitionLink link:calculationLink 016 - Disclosure - Description of business and summary of significant accounting policies (Details Textual) link:presentationLink link:definitionLink link:calculationLink 017 - Disclosure - Inventory (Details Textual) link:presentationLink link:definitionLink link:calculationLink 018 - Disclosure - Stockholders' equity (Details) link:presentationLink link:definitionLink link:calculationLink 019 - Disclosure - Stockholders' equity (Details Textual) link:presentationLink link:definitionLink link:calculationLink 020 - Disclosure - Earnings per share (Details) link:presentationLink link:definitionLink link:calculationLink 021 - Disclosure - Related parties (Details Textual) link:presentationLink link:definitionLink link:calculationLink