000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Condensed Consolidated Balance Sheets (Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Condensed Consolidated Balance Sheets (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 Comprehensive Loss (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statement of Stockholders' Equity (Deficit) (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 007 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 1 - Nature of Operations link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 3 - Net Loss Per Share link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 4 - Fair Value Measurements link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 5 - Accounts Receivable link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 7 - Leases link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 8 - Intangible Assets link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 9 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 10 - Main Street Term Loan link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 11 - Madryn Debt and Convertible Notes link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 12 - EW Convertible Notes link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 13 - Common Stock Reserved for Issuance link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 14 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 15 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 16 - Segment and Geographic Information link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 17 - Related Party Transactions link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 18 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 3 - Net Loss Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 4 - Fair Value Measurements (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 5 - Accounts Receivable (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 7 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 8 - Intangible Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 9 - Commitments and Contingencies (Tables) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 10 - Main Street Term Loan (Tables) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 13 - Common Stock Reserved for Issuance (Tables) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 14 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 15 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 16 - Segment and Geographic Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 1 - Nature of Operations (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 3 - Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 3 - Net Loss Per Share - Antidilutive Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 4 - Fair Value Measurements - Fair Value Measurements (Details) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 5 - Accounts Receivable (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 5 - Accounts Receivable - Summary of Accounts Receivable (Details) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 5 - Accounts Receivable - Schedule of Contractual Commitments, Net of Allowance for Doubtful Accounts (Details) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 5 - Accounts Receivable - Schedule of Contractual Commitments, Net of Allowance for Doubtful Accounts (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 5 - Accounts Receivable - Allowance for Doubtful Accounts (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information - Schedule of Property and Equipment, Net (Details) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information - Property and Equipment, Net (Details) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information - Other Current Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information - Accrued Expenses and Other Current Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information - Warranty Accrual (Details) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 6 - Select Balance Sheet and Statement of Operations Information - Finance Expenses (Details) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 7 - Leases - Lease Cost (Details) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 7 - Leases - Operating Lease Maturity (Details) link:calculationLink link:definitionLink link:presentationLink 995503 - Disclosure - Note 8 - Intangible Assets (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995504 - Disclosure - Note 8 - Intangible Assets - Schedule of Intangible Assets Net of Accumulated Amortization and Goodwill (Details) link:calculationLink link:definitionLink link:presentationLink 995505 - Disclosure - Note 8 - Intangible Assets - Estimated Amortization (Details) link:calculationLink link:definitionLink link:presentationLink 995506 - Disclosure - Note 9 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995507 - Disclosure - Note 9 - Commitments and Contingencies - Contractual Obligation Maturity (Details) link:calculationLink link:definitionLink link:presentationLink 995508 - Disclosure - Note 10 - Main Street Term Loan (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995509 - Disclosure - Note 10 - Main Street Term Loan - Schedule Payments on Outstanding Borrowings (Details) link:calculationLink link:definitionLink link:presentationLink 995510 - Disclosure - Note 11 - Madryn Debt and Convertible Notes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995511 - Disclosure - Note 12 - EW Convertible Notes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995512 - Disclosure - Note 13 - Common Stock Reserved for Issuance - Common Stock Reserved for Issuance (Details) link:calculationLink link:definitionLink link:presentationLink 995513 - Disclosure - Note 14 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995514 - Disclosure - Note 14 - Stockholders' Equity - Stock-based Compensation (Details) link:calculationLink link:definitionLink link:presentationLink 995515 - Disclosure - Note 14 - Stockholders' Equity - Stock Options Assumptions (Details) link:calculationLink link:definitionLink link:presentationLink 995516 - Disclosure - Note 14 - Stockholders' Equity - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995517 - Disclosure - Note 14 - Stockholders' Equity - Stock Options Outstanding and Exercisable (Details) link:calculationLink link:definitionLink link:presentationLink 995518 - Disclosure - Note 15 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995519 - Disclosure - Note 15 - Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details) link:calculationLink link:definitionLink link:presentationLink 995520 - Disclosure - Note 15 - Income Taxes - Reconciliation of Income Tax Expense (Benefit) (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995521 - Disclosure - Note 16 - Segment and Geographic Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995522 - Disclosure - Note 16 - Segment and Geographic Information - Schedule of Revenue by Geographic Area (Details) link:calculationLink link:definitionLink link:presentationLink 995523 - Disclosure - Note 16 - Segment and Geographic Information - Schedule of Revenue by Type (Details) link:calculationLink link:definitionLink link:presentationLink 995524 - Disclosure - Note 18 - Subsequent Events (Details Textual) link:calculationLink link:definitionLink link:presentationLink