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Note 10 - Commitments and Contingent Liabilities
 6 Months Ended
Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Disclosure [Text Block]

Note 10.  Commitments and Contingencies


From time-to-time, we are a party to 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 condensed consolidated financial statements.


We had $35.7 million and $39.0 million of outstanding and undrawn letters of credit as of June 30, 2014 and December 31, 2013, respectively. The letters of credit are maintained primarily to support our insurance programs.


Effective April 1, 2013, we entered into an auto liability policy with a three-year term. The policy retains the $1.0 million per claim limit for the primary excess layer of our auto liability program, with no changes to the excess policies. Similar to the prior policy, the current policy contains a commutation option; however, this option is only available after the completion of the three-year policy term.