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Note 15 - Commitments and Contingent Liabilities | 12 Months Ended
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Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract] |
Commitments and Contingencies Disclosure [Text Block] | 15. COMMITMENTS AND CONTINGENT LIABILITIES From time-to-time, we are a party to ordinary, routine litigation arising in the ordinary course of business, most of which involves claims for personal injury and property damage incurred in connection with the transportation of freight. We maintain insurance to cover liabilities arising from the transportation of freight for amounts in excess of certain self-insured retentions. In management's opinion, our potential exposure under pending legal proceedings is adequately provided for in the accompanying consolidated financial statements. We had $39.0 million and $39.6 million of outstanding and undrawn letters of credit as of December 31, 2013 and 2012, respectively. The letters of credit are maintained primarily to support our insurance programs. We had commitments outstanding at December 31, 2013, to acquire revenue equipment totaling approximately $0.2 million in 2014 versus commitments at December 31, 2012 of approximately $74.3 million. These commitments are cancelable, subject to certain adjustments in the underlying obligations and benefits. These purchase commitments are expected to be financed by operating leases, capital leases, long-term debt, proceeds from sales of existing equipment, and/or cash flows from operations. See "Critical Accounting Policies And Estimates – Insurance and Other Claims" under Item 7 of Part II of this Annual Report on Form 10-K for additional information.

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