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 Comprehensive Loss (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) 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 - Description of the Business link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Basis of Presentation and Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Restructuring and Asset Sales link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Intangible Assets, Net link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Loss per Common Share link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Accounts Receivable, Net, and Inventories link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Leases link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Property, Plant and Equipment, Net link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Accrued Expenses and Other Current Liabilities link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Debt link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 13 - Stock-based Compensation link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 14 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 15 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 16 - Fair Value Measurements link:calculationLink link:definitionLink link:presentationLink 995468 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995469 - Disclosure - Note 3 - Basis of Presentation and Significant Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Note 4 - Restructuring and Asset Sales (Tables) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 6 - Loss per Common Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 7 - Accounts Receivable, Net, and Inventories (Tables) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 8 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 9 - Property, Plant and Equipment, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 10 - Accrued Expenses and Other Current Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 11 - Debt (Tables) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 13 - Stock-based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 16 - Fair Value Measurements (Tables) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 3 - Basis of Presentation and Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 3 - Basis of Presentation and Significant Accounting Policies - Revenue by Area (Details) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 3 - Basis of Presentation and Significant Accounting Policies - Assets by Area (Details) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 4 - Restructuring and Asset Sales (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 4 - Restructuring and Asset Sales - Restructuring Costs (Details) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 4 - Restructuring and Asset Sales - Restructuring Costs 2 (Details) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 5 - Intangible Assets, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 6 - Loss per Common Share - Basic and Diluted Earnings per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 6 - Loss per Common Share - Antidilutive Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 7 - Accounts Receivable, Net, and Inventories - Accounts Receivable (Details) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 7 - Accounts Receivable, Net, and Inventories - Change in Allowance for Doubtful Accounts (Details) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 7 - Accounts Receivable, Net, and Inventories - Inventory (Details) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 8 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 8 - Leases - Lease Assets and Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 8 - Leases - Future Lease Payments (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 9 - Property, Plant and Equipment, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 9 - Property, Plant and Equipment, Net - Property, Plant and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 9 - Property, Plant and Equipment, Net - Asset Retirement Obligations (Details) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 10 - Accrued Expenses and Other Current Liabilities - Accrued Expenses and Other Current Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 11 - Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 11 - Debt - Debt (Details) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 11 - Debt - Debt (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 11 - Debt - Maturities of Debt (Details) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 12 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995503 - Disclosure - Note 13 - Stock-based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995504 - Disclosure - Note 13 - Stock-based Compensation - Restricted Stock Unit Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995505 - Disclosure - Note 13 - Stock-based Compensation - Option Award Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995506 - Disclosure - Note 14 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995507 - Disclosure - Note 15 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995508 - Disclosure - Note 16 - Fair Value Measurements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995509 - Disclosure - Note 16 - Fair Value Measurements - Fair Value of Assets and Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink