000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Condensed Consolidated Statements of Operations (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 1 - Organization link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 3 - Note Receivable, Net link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 4 - Inventory link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 5 - Property and Equipment, Net link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 6 - Other Assets link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 7 - Accrued Expenses link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 8 - Leases link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 9 - Warrant Liability link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 10 - Employee Retention Credit link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 11 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 12 - Segment Reporting link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 13 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 995466 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995467 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink 995468 - Disclosure - Note 3 - Note Receivable, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 995469 - Disclosure - Note 4 - Inventory (Tables) link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Note 5 - Property and Equipment, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 6 - Other Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 7 - Accrued Expenses (Tables) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 8 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 9 - Warrant Liability (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 11 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 1 - Organization (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities Excluded From Computation of Earnings Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 3 - Note Receivable, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 3 - Note Receivable, Net - Allowance for Credit Loss (Details) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 4 - Inventory - Inventory (Details) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 5 - Property and Equipment, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 5 - Property and Equipment, Net - Property and Equipment, Net (Details) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 6 - Other Assets - Other Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 7 - Accrued Expenses - Accrued Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 8 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 8 - Leases - Right-of-Use Assets and Related Lease Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 8 - Leases - Maturities of Lease Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 9 - Warrant Liability (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 9 - Warrant Liability - Valuation Techniques (Details) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 9 - Warrant Liability - Schedule of Warrant Liability and Fair Value (Details) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 10 - Employee Retention Credit (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 11 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 11 - Stockholders' Equity - Stock-based Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 11 - Stockholders' Equity - Stock-based Compensation Expense 2 (Details) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 11 - Stockholders' Equity - Stock-based Compensation Plan Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 12 - Segment Reporting (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 13 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink