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 Income (Loss) (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Disclosure - Note 1 - General Business link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Long-lived Asset Impairments link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Inventory link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Other Long-term Assets link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Bank Debt link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Accounts Payable and Accrued Liabilities link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Revenue link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Other Operating Income link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Stock Compensation Plans link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Leases link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Self-insurance link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 13 - Net Income (Loss) Per Share link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 14 - Fair Value Measurements link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 15 - Equity Method Investments link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 4 - Other Long-term Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 5 - Bank Debt (Tables) link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 6 - Accounts Payable and Accrued Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 8 - Other Operating Income (Tables) link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 10 - Stock Compensation Plans (Tables) link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 11 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 13 - Net Income (Loss) Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 14 - Fair Value Measurements (Tables) link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 2 - Long-lived Asset Impairments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 3 - Inventory (Details Textual) link:calculationLink link:definitionLink link:presentationLink 032 - Disclosure - Note 4 - Other Long-term Assets - Other Long-term Assets (Details) link:calculationLink link:definitionLink link:presentationLink 033 - Disclosure - Note 5 - Bank Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 034 - Disclosure - Note 5 - Bank Debt - Bank Debt, Less Debt Issuance Costs (Details) link:calculationLink link:definitionLink link:presentationLink 035 - Disclosure - Note 5 - Bank Debt - Maximum Leverage Ratio (Details) link:calculationLink link:definitionLink link:presentationLink 036 - Disclosure - Note 6 - Accounts Payable and Accrued Liabilities - Accounts Payable and Accrued Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 037 - Disclosure - Note 7 - Revenue 1 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 038 - Disclosure - Note 7 - Revenue 2 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 039 - Disclosure - Note 8 - Other Operating Income - Other Operating Income (Details) link:calculationLink link:definitionLink link:presentationLink 040 - Disclosure - Note 9 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 041 - Disclosure - Note 10 - Stock Compensation Plans (Details Textual) link:calculationLink link:definitionLink link:presentationLink 042 - Disclosure - Note 10 - Stock Compensation Plans - RSU Activity (Details) link:calculationLink link:definitionLink link:presentationLink 043 - Disclosure - Note 10 - Stock Compensation Plans - RSU Activity (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 044 - Disclosure - Note 10 - Stock Compensation Plans - Vesting of Non-vested RSU Grants (Details) link:calculationLink link:definitionLink link:presentationLink 045 - Disclosure - Note 11 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 046 - Disclosure - Note 11 - Leases - Information Related to Leases (Details) link:calculationLink link:definitionLink link:presentationLink 047 - Disclosure - Note 11 - Leases - Future Minimum Lease Payments (Details) link:calculationLink link:definitionLink link:presentationLink 048 - Disclosure - Note 12 - Self-insurance (Details Textual) link:calculationLink link:definitionLink link:presentationLink 049 - Disclosure - Note 13 - Net Income (Loss) Per Share - Computation of Net Income(Loss) Allocated to Common Shareholders (Details) link:calculationLink link:definitionLink link:presentationLink 050 - Disclosure - Note 14 - Fair Value Measurements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 051 - Disclosure - Note 14 - Fair Value Measurements - Financial Assets and Liabilities Measured on a Recurring Basis at Fair Value (Details) link:calculationLink link:definitionLink link:presentationLink 052 - Disclosure - Note 14 - Fair Value Measurements - Change in Fair Value of the Fuel Hedges and Interest Rate Swaps (Details) link:calculationLink link:definitionLink link:presentationLink 053 - Disclosure - Note 15 - Equity Method Investments (Details Textual) link:calculationLink link:definitionLink link:presentationLink