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Note 4 - Related Party Transactions | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Related Party Transactions Disclosure [Text Block] | 4. Related Party Transactions The following related party transactions occurred during the three years ended December 31, 2016; (a) We purchase fuel and tires and obtain related services from a company in which one of our directors is the chairman of the board, chief executive officer and the principal stockholder. We paid that company $361,000 in 2016, $335,000 in 2015 and $562,000 in 2014 for fuel, tires and related services. In addition, we paid $2.0 million in 2016, $1.5 million in 2015 and $1.4 million in 2014 to tire manufacturers for tires that were provided by the same company. The same company received commissions from the tire manufacturers related to these purchases. We did not have any payables to that company as of December 31, 2016 or 2015. (b) We provide transportation services to MWL as described in Note 10.

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