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Note 4 - Related Party Transactions | 12 Months Ended
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Dec. 31, 2020
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, 2020: (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 and chief executive officer. We paid that company $241,000 in 2020, $392,000 in 2019 and $341,000 in 2018 for fuel, tires and related services. In addition, we paid $2.0 million in 2020, $1.7 million in 2019 and $2.5 million in 2018 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 had payables to that company of $900 as of December 31, 2020 and $19,000 as of December 31, 2019. (b) We paid $154,000 in 2020 for various construction projects to a company in which one of our directors is the chief executive officer and the principal stockholder. We did not pay the same company for any services in 2019 or 2018. We did not have any accounts payable to that company as of December 31, 2020 or 2019. (c) We provided transportation services to MW Logistics, LLC, or MWL, a 45% owned affiliate through October 31, 2019, as described in Note 11.

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