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 Loss (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Condensed Consolidated Comprehensive Statements of Comprehensive Loss (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statement Of Changes In 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 - Basis of Presentation and Accounting Policies link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 2 - Equipment Acquisitions and Dispositions link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 3 - Investments, at Equity, and Advances to 50% or Less Owned Companies link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 4 - Long-term Debt link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 5 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 6 - Derivative Instruments and Hedging Strategies link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 7 - Fair Value Measurements link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 8 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 9 - Noncontrolling Interest in Subsidiaries link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 10 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 11 - Segment Information link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 12 - Subsequent Event link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 1 - Basis of Presentation and Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 5 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 6 - Derivative Instruments and Hedging Strategies (Tables) link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 7 - Fair Value Measurements (Tables) link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 9 - Noncontrolling Interest in Subsidiaries (Tables) link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 11 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 1 - Basis of Presentation and Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 1 - Basis of Presentation and Accounting Policies - Deferred Revenues (Details) link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 1 - Basis of Presentation and Accounting Policies - Property and Equipment Useful Life (Details) link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 1 - Basis of Presentation and Accounting Policies - Deferred Gain Activity (Details) link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 1 - Basis of Presentation and Accounting Policies - Accumulated Other Comprehensive Income (Details) link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 2 - Equipment Acquisitions and Dispositions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 032 - Disclosure - Note 3 - Investments, at Equity, and Advances to 50% or Less Owned Companies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 033 - Disclosure - Note 4 - Long-term Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 034 - Disclosure - Note 5 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 035 - Disclosure - Note 5 - Income Taxes - Income Tax Rate Reconciliation (Details) link:calculationLink link:definitionLink link:presentationLink 036 - Disclosure - Note 6 - Derivative Instruments and Hedging Strategies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 037 - Disclosure - Note 6 - Derivative Instruments and Hedging Strategies - Derivative Instruments (Details) link:calculationLink link:definitionLink link:presentationLink 038 - Disclosure - Note 6 - Derivative Instruments and Hedging Strategies - Gains (Losses) on Derivative Instruments (Details) link:calculationLink link:definitionLink link:presentationLink 039 - Disclosure - Note 7 - Fair Value Measurements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 040 - Disclosure - Note 7 - Fair Value Measurements - Assets and Liabilities on Recurring Basis (Details) link:calculationLink link:definitionLink link:presentationLink 041 - Disclosure - Note 7 - Fair Value Measurements - Estimated Fair Value (Details) link:calculationLink link:definitionLink link:presentationLink 042 - Disclosure - Note 7 - Fair Value Measurements - Other Assets and Liabilities at Fair Value (Details) link:calculationLink link:definitionLink link:presentationLink 043 - Disclosure - Note 8 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 044 - Disclosure - Note 9 - Noncontrolling Interest in Subsidiaries (Details Textual) link:calculationLink link:definitionLink link:presentationLink 045 - Disclosure - Note 9 - Noncontrolling Interest in Subsidiaries - Noncontrolling Interest (Details) link:calculationLink link:definitionLink link:presentationLink 046 - Disclosure - Note 10 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 047 - Disclosure - Note 11 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 048 - Disclosure - Note 11 - Segment Information - Summary of Reportable Segments (Details) link:calculationLink link:definitionLink link:presentationLink 049 - Disclosure - Note 11 - Segment Information - Income (Loss) in Equity Method Investments (Details) link:calculationLink link:definitionLink link:presentationLink 050 - Disclosure - Note 12 - Subsequent Event (Details Textual) link:calculationLink link:definitionLink link:presentationLink