0001 - Document - Document and Entity Information link:presentationLink link:definitionLink link:calculationLink 0002 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:definitionLink link:calculationLink 0003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:definitionLink link:calculationLink 0004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME link:presentationLink link:definitionLink link:calculationLink 0005 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (Parenthetical) link:presentationLink link:definitionLink link:calculationLink 0006 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY link:presentationLink link:definitionLink link:calculationLink 0007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:definitionLink link:calculationLink 0008 - Disclosure - Basis of presentation link:presentationLink link:definitionLink link:calculationLink 0009 - Disclosure - Inventory link:presentationLink link:definitionLink link:calculationLink 0010 - Disclosure - Operating Leases - Right-of-Use Assets and Lease Liability Obligations link:presentationLink link:definitionLink link:calculationLink 0011 - Disclosure - Prepaid expenses and other current assets link:presentationLink link:definitionLink link:calculationLink 0012 - Disclosure - Revolving line of Credit facility link:presentationLink link:definitionLink link:calculationLink 0013 - Disclosure - Short-term Loans link:presentationLink link:definitionLink link:calculationLink 0014 - Disclosure - Notes payable link:presentationLink link:definitionLink link:calculationLink 0015 - Disclosure - Revenue and Cost Recognition link:presentationLink link:definitionLink link:calculationLink 0016 - Disclosure - Income Taxes link:presentationLink link:definitionLink link:calculationLink 0017 - Disclosure - Net Income Per Share of Common Stock link:presentationLink link:definitionLink link:calculationLink 0018 - Disclosure - Common Stock link:presentationLink link:definitionLink link:calculationLink 0019 - Disclosure - Preferred Stock link:presentationLink link:definitionLink link:calculationLink 0020 - Disclosure - Recent Accounting Pronouncements link:presentationLink link:definitionLink link:calculationLink 0021 - Disclosure - Segment Information link:presentationLink link:definitionLink link:calculationLink 0022 - Disclosure - Related Party Transactions link:presentationLink link:definitionLink link:calculationLink 0023 - Disclosure - Litigation link:presentationLink link:definitionLink link:calculationLink 0024 - Disclosure - Risks and Uncertainties link:presentationLink link:definitionLink link:calculationLink 0025 - Disclosure - Subsequent Events link:presentationLink link:definitionLink link:calculationLink 9960701 - Disclosure - Recent Accounting Pronouncements (Policies) link:presentationLink link:definitionLink link:calculationLink 9960702 - Disclosure - Operating Leases - Right-of-Use Assets and Lease Liability Obligations (Tables) link:presentationLink link:definitionLink link:calculationLink 9960703 - Disclosure - Notes payable (Tables) link:presentationLink link:definitionLink link:calculationLink 9960704 - Disclosure - Revenue and Cost Recognition (Tables) link:presentationLink link:definitionLink link:calculationLink 9960705 - Disclosure - Segment Information (Tables) link:presentationLink link:definitionLink link:calculationLink 9960706 - Disclosure - Inventory (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960707 - Disclosure - Operating Leases - Right-of-Use Assets and Lease Liability Obligations (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960708 - Disclosure - Operating Leases - Right-of-Use Assets and Lease Liability Obligations - Schedule of right-of-use assets and lease liability obligations (Details) link:presentationLink link:definitionLink link:calculationLink 9960709 - Disclosure - Operating Leases - Right-of-Use Assets and Lease Liability Obligations - Schedule of remaining lease term and incremental borrowing rates of operating leases (Details) link:presentationLink link:definitionLink link:calculationLink 9960710 - Disclosure - Operating Leases - Right-of-Use Assets and Lease Liability Obligations - Schedule of maturities of lease liabilities (Details) link:presentationLink link:definitionLink link:calculationLink 9960711 - Disclosure - Operating Leases - Right-of-Use Assets and Lease Liability Obligations - Schedule of supplemental cash flow information of operating leases (Details) link:presentationLink link:definitionLink link:calculationLink 9960712 - Disclosure - Prepaid expenses and other current assets (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960713 - Disclosure - Revolving line of Credit facility (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960714 - Disclosure - Short-term Loans (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960715 - Disclosure - Notes payable (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960716 - Disclosure - Notes payable - Schedule of note payable (Details) link:presentationLink link:definitionLink link:calculationLink 9960717 - Disclosure - Revenue and Cost Recognition (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960718 - Disclosure - Revenue and Cost Recognition - Schedule of revenue by major customers by reporting segments (Details) link:presentationLink link:definitionLink link:calculationLink 9960719 - Disclosure - Net Income Per Share of Common Stock (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960720 - Disclosure - Common Stock (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960721 - Disclosure - Preferred Stock (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960722 - Disclosure - Segment Information (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960723 - Disclosure - Segment Information - Schedule of selected financial information (Details) link:presentationLink link:definitionLink link:calculationLink 9960724 - Disclosure - Related Party Transactions (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 9960725 - Disclosure - Subsequent Events (Narrative) (Details) link:presentationLink link:definitionLink link:calculationLink 0051 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Additional Calculation 1) link:presentationLink link:definitionLink link:calculationLink