Significant Accounting Policies (Policies)	9 Months Ended
Sep. 30, 2025
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The condensed consolidated financial statements include the accounts of Covenant Logistics Group, Inc., a Nevada holding company, and its wholly owned subsidiaries. References in this report to "we," "us," "our," the "Company," and similar expressions refer to Covenant Logistics Group, Inc. and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X promulgated under the Securities Act of 1933. In preparing financial statements, it is necessary for management to make assumptions and estimates affecting the amounts reported in the condensed consolidated financial statements and related notes. These estimates and assumptions are developed based upon all information available. Actual results could differ from estimated amounts. In the opinion of management, the accompanying financial statements include all adjustments that are necessary for a fair presentation of the results for the interim periods presented, such adjustments being of a normal recurring nature. Certain information and footnote disclosures have been condensed or omitted pursuant to such rules and regulations. The December 31, 2024, condensed consolidated balance sheet was derived from our audited balance sheet as of that date. Our operating results are subject to seasonal trends when measured on a quarterly basis; therefore, operating results for the nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. These condensed consolidated financial statements and notes thereto should be read in conjunction with the consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2024. Results of operations in interim periods are not necessarily indicative of results to be expected for a full year.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Property and equipment is stated at cost less accumulated depreciation. Depreciation for book purposes is determined using the straight-line method over the estimated useful lives of the assets. Depreciation of revenue equipment is our largest item of depreciation. We generally depreciate new tractors over five years to salvage values ranging from approximately 0% to 35% of their cost, depending on the utilization profile of the equipment associated with its reportable segment. We generally depreciate new trailers over seven years for refrigerated trailers and ten years for dry van trailers to salvage values of approximately 20% and 25% of their cost, respectively. We annually, or whenever events or changes in circumstances indicate that a review is warranted, review the reasonableness of our estimates regarding useful lives and salvage values of our revenue equipment and other long-lived assets, based upon, among other things, our experience with similar assets, conditions in the used revenue equipment market, and prevailing industry practice. During the quarter ended June 30, 2024, we performed a review of our estimates and, due to a weak used revenue equipment market, we increased the rate of depreciation on revenue equipment in the period resulting in an additional $1.2 million and $3.8 million of depreciation expense during the three and nine months ended September 30, 2024, respectively.
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements Accounting standards not yet adopted In September 2025, the Financial Accounting Standards Board ("FASB") issued ASU 2025-06, Intangibles - Goodwill and Other - Internal-Use Software: Targeted Improvements to the Accounting for Internal-Use Software, which clarifies and modernizes the accounting for costs related to internal-use software. The amendments in the standard remove all previous references to project stages and clarify the threshold entities apply to begin capitalizing costs. The standard becomes effective for us on January 1, 2028, for annual and interim periods and may be adopted on a prospective basis, a modified basis for in-process projects, or a retrospective basis. The Company is currently evaluating the effects adoption of this guidance will have on our consolidated financial statements. In July 2025, the FASB issued ASU 2025-05, Measurement of Credit Losses for Accounts Receivable and Contract Assets. In developing reasonable and supportable forecasts as part of estimating expected credit losses, all entities may elect a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. This guidance is effective for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. The Company does not expect adoption of this guidance to have a material effect on our consolidated financial statements. In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This guidance requires disclosure of disaggregated information about certain income statement expense line items in the notes to the financial statements. The guidance in this ASU is effective for all public entities for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The update may be applied either prospectively or retrospectively. Early adoption is permitted. The Company is currently evaluating the effects adoption of this guidance will have on our consolidated financial statements. In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures. This new guidance is designed to enhance the transparency and decision usefulness of income tax disclosures. The amendments of this update are related to the rate reconciliation and income taxes paid, requiring (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. ASU 2023-09 is effective for annual periods beginning after December 15, 2024. The amendments only impact disclosures and are not expected to have an impact on the Company's financial condition and results of operations.
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassification of Previously Issued Financial Statements Certain amounts in the prior period have been reclassified in the condensed consolidated financial statements to conform to the current year presentation. There has been no impact on previously reported net income or stockholders' equity from such reclassification.

Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2025

Basis of Accounting, Policy [Policy Text Block]

Basis of Presentation

The condensed consolidated financial statements include the accounts of Covenant Logistics Group, Inc., a Nevada holding company, and its wholly owned subsidiaries. References in this report to "we," "us," "our," the "Company," and similar expressions refer to Covenant Logistics Group, Inc. and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X promulgated under the Securities Act of 1933. In preparing financial statements, it is necessary for management to make assumptions and estimates affecting the amounts reported in the condensed consolidated financial statements and related notes. These estimates and assumptions are developed based upon all information available. Actual results could differ from estimated amounts. In the opinion of management, the accompanying financial statements include all adjustments that are necessary for a fair presentation of the results for the interim periods presented, such adjustments being of a normal recurring nature.

Certain information and footnote disclosures have been condensed or omitted pursuant to such rules and regulations. The December 31, 2024, condensed consolidated balance sheet was derived from our audited balance sheet as of that date. Our operating results are subject to seasonal trends when measured on a quarterly basis; therefore, operating results for the nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. These condensed consolidated financial statements and notes thereto should be read in conjunction with the consolidated financial statements and notes thereto included in our Form 10-K for the year ended December 31, 2024. Results of operations in interim periods are not necessarily indicative of results to be expected for a full year.

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment

Property and equipment is stated at cost less accumulated depreciation. Depreciation for book purposes is determined using the straight-line method over the estimated useful lives of the assets. Depreciation of revenue equipment is our largest item of depreciation. We generally depreciate new tractors over five years to salvage values ranging from approximately 0% to 35% of their cost, depending on the utilization profile of the equipment associated with its reportable segment. We generally depreciate new trailers over seven years for refrigerated trailers and ten years for dry van trailers to salvage values of approximately 20% and 25% of their cost, respectively. We annually, or whenever events or changes in circumstances indicate that a review is warranted, review the reasonableness of our estimates regarding useful lives and salvage values of our revenue equipment and other long-lived assets, based upon, among other things, our experience with similar assets, conditions in the used revenue equipment market, and prevailing industry practice. During the quarter ended June 30, 2024, we performed a review of our estimates and, due to a weak used revenue equipment market, we increased the rate of depreciation on revenue equipment in the period resulting in an additional $1.2 million and $3.8 million of depreciation expense during the three and nine months ended September 30, 2024, respectively.

New Accounting Pronouncements, Policy [Policy Text Block]

Recent Accounting Pronouncements

Accounting standards not yet adopted

In September 2025, the Financial Accounting Standards Board ("FASB") issued ASU 2025-06, Intangibles - Goodwill and Other - Internal-Use Software: Targeted Improvements to the Accounting for Internal-Use Software, which clarifies and modernizes the accounting for costs related to internal-use software. The amendments in the standard remove all previous references to project stages and clarify the threshold entities apply to begin capitalizing costs. The standard becomes effective for us on January 1, 2028, for annual and interim periods and may be adopted on a prospective basis, a modified basis for in-process projects, or a retrospective basis. The Company is currently evaluating the effects adoption of this guidance will have on our consolidated financial statements.

In July 2025, the FASB issued ASU 2025-05, Measurement of Credit Losses for Accounts Receivable and Contract Assets. In developing reasonable and supportable forecasts as part of estimating expected credit losses, all entities may elect a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. This guidance is effective for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods. The Company does not expect adoption of this guidance to have a material effect on our consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses. This guidance requires disclosure of disaggregated information about certain income statement expense line items in the notes to the financial statements. The guidance in this ASU is effective for all public entities for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The update may be applied either prospectively or retrospectively. Early adoption is permitted. The Company is currently evaluating the effects adoption of this guidance will have on our consolidated financial statements.

In December 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures. This new guidance is designed to enhance the transparency and decision usefulness of income tax disclosures. The amendments of this update are related to the rate reconciliation and income taxes paid, requiring (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) income taxes paid disaggregated by jurisdiction. ASU 2023-09 is effective for annual periods beginning after December 15, 2024. The amendments only impact disclosures and are not expected to have an impact on the Company's financial condition and results of operations.

Reclassification, Comparability Adjustment [Policy Text Block]

Reclassification of Previously Issued Financial Statements

Certain amounts in the prior period have been reclassified in the condensed consolidated financial statements to conform to the current year presentation. There has been no impact on previously reported net income or stockholders' equity from such reclassification.