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Note 7 - Debt (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Debt [Table Text Block] |
(in thousands) |  | December 31, 2016 |  |  | December 31, 2015 |
|  | Current |  |  | Long-Term |  |  | Current |  |  | Long-Term |
Borrowings under Credit Facility |  | $ | - |  |  | $ | 12,185 |  |  | $ | - |  |  | $ | 3,002 |
Revenue equipment installment notes; weighted average interest rate of 3.3% at December 31, 2016, and 3.6% December 31, 2015, due in monthly installments with final maturities at various dates ranging from January 2017 to December 2022, secured by related revenue equipment |  |  | 23,986 |  |  |  | 127,840 |  |  |  | 38,461 |  |  |  | 163,387 |
Real estate notes; weighted average interest rate of 2.4% and 2.0% at December 31, 2016 and 2015, respectively, due in monthly installments with fixed maturities at December 2018 and August 2035, secured by related real-estate |  |  | 1,224 |  |  |  | 28,907 |  |  |  | 1,184 |  |  |  | 30,124 |
Deferred loan costs |  |  | (263 | ) |  |  | (256 | ) |  |  | (250 | ) |  |  | (456 | )
Total debt |  |  | 24,947 |  |  |  | 168,676 |  |  |  | 39,395 |  |  |  | 196,057 |
Principal portion of capital lease obligations, secured by related revenue equipment |  |  | 2,441 |  |  |  | 19,761 |  |  |  | 4,031 |  |  |  | 10,547 |
Total debt and capital lease obligations |  | $ | 27,388 |  |  | $ | 188,437 |  |  | $ | 43,426 |  |  | $ | 206,604 |
Schedule of Maturities of Long-term Debt [Table Text Block] |
|  | (in thousands) |
2017 |  | $ | 25,210 |
2018 |  |  | 39,783 |
2019 |  |  | 29,014 |
2020 |  |  | 58,424 |
2021 |  |  | 14,136 |
Thereafter |  | $ | 27,575 |

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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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