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Note 7 - Debt (Tables) | 12 Months Ended
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Dec. 31, 2014
Debt Disclosure [Abstract] |
Schedule of Debt [Table Text Block] |
(in thousands) |  | December 31, 2014 |  |  | December 31, 2013 |
|  | Current |  |  | Long-Term |  |  | Current |  |  | Long-Term |
Borrowings under Credit Facility |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | 7,010 |
Revenue equipment installment notes; weighted average interest rate of 3.8% at December 31, 2014, and 4.7% December 31, 2013, due in monthly installments with final maturities at various dates ranging from January 2015 to January 2022, secured by related revenue equipment |  |  | 27,550 |  |  |  | 155,832 |  |  |  | 43,745 |  |  |  | 158,596 |
Real estate note; interest rate of 2.5% and 2.4% at December 31, 2014 and 2013, respectively, due in monthly installments with fixed maturity at December 2018, secured by related real-estate |  |  | 166 |  |  |  | 3,608 |  |  |  | 217 |  |  |  | 3,693 |
Other note payable, interest rate of 3.0% at December 31, 2014 and 2013, with fixed maturity at November 2016 |  |  | 108 |  |  |  | 91 |  |  |  | 108 |  |  |  | 192 |
Total debt |  |  | 27,824 |  |  |  | 159,531 |  |  |  | 44,070 |  |  |  | 169,491 |
Principal portion of capital lease obligations, secured by related revenue equipment |  |  | 1,606 |  |  |  | 13,372 |  |  |  | 8,732 |  |  |  | 13,186 |
Total debt and capital lease obligations |  | $ | 29,430 |  |  | $ | 172,903 |  |  | $ | 52,802 |  |  | $ | 182,677 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
|  | (in thousands) |
2015 |  | $ | 27,824 |
2016 |  |  | 34,331 |
2017 |  |  | 38,544 |
2018 |  |  | 53,478 |
2019 |  |  | 25,659 |
Thereafter |  | $ | 7,519 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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