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Note 1- Accounting Policies (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Bank Overdrafts | $ 135,000 | $ 43,000 |
Other Receivables, Net, Current, Total | 6,263,000 | 7,092,000 |
Advertising Expense | $ 2,101,000 | $ 1,154,000 | $ 1,102,000
Truckload Services [Member] | Sales [Member] | Product Concentration Risk [Member] |  |  |
Concentration Risk, Percentage | 66.00% | 67.00% | 76.90%
Independent Contractors [Member] |  |  |
Other Receivables, Net, Current, Total | $ 1,379,000 | $ 1,037,000 |

X
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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