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Note 4 - Related Party Transactions | 12 Months Ended
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Dec. 31, 2022
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, 2022: (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 $477,000 in 2022, $306,000 in 2021 and $241,000 in 2020 for fuel, tires and related services. In addition, we paid $2.0 million in each of 2022, 2021 and 2020 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. Payables to that company were $29,000 at December 31, 2022, while we did not have any payables as of December 31, 2021. (b) We paid $10,000 for a building repair in 2022 and $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. No payments were made to that company for services in 2021. We did not have any accounts payable to that company as of December 31, 2022 or 2021.

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