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Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2021
Accounting Policies [Abstract] |
Consolidation, Policy [Policy Text Block] | Description of Business and Principles of Consolidation– P.A.M. Transportation Services, Inc. (the “Company”), through its subsidiaries, operates as a truckload transportation and logistics company. The consolidated financial statements include the accounts of the Company and its wholly owned operating subsidiaries: P.A.M. Transport, Inc., P.A.M. Cartage Carriers, LLC, Overdrive Leasing, LLC, Choctaw Express, LLC, Decker Transport Co., LLC, T.T.X., LLC, Transcend Logistics, Inc., and East Coast Transport and Logistics, LLC. The following subsidiaries were inactive during all periods presented: P.A.M. International, Inc., Choctaw Brokerage, Inc., S & L Logistics, Inc. and P.A.M. Mexico Holdings, LLC.
Use of Estimates, Policy [Policy Text Block] | Use of Estimates– The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of any contingent assets and liabilities at the financial statement date and reported amounts of revenue and expenses during the reporting period. The Company periodically reviews these estimates and assumptions. The most significant estimates that affect our financial statements include accrued liabilities for insurance claims, legal reserves, useful lives and salvage values for property and equipment, current expected credit losses, and estimates for income taxes. The Company's estimates were based on its historical experience and various other assumptions that management believes to be reasonable under the circumstances. Actual results could differ from those estimates.
Cash and Cash Equivalents, Policy [Policy Text Block] | Cash and Cash Equivalents– The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. At times cash held at banks may exceed FDIC insured limits.
Receivable [Policy Text Block] | Accounts Receivable and Current Expected Credit Losses– Accounts receivable are presented in the Company’s consolidated financial statements net of current expected credit losses. Management estimates current expected credit losses based upon an evaluation of the aging of our customer receivables and historical write-offs, as well as other trends and factors surrounding the credit risk of specific customers. The Company continually updates the history it uses to make these estimates so as to reflect the most recent trends, factors and other information available. In order to gather information regarding these trends and factors, the Company also performs ongoing credit evaluations of its customers. Customer receivables are considered to be past due when payment has not been received by the invoice due date. Write-offs occur when management determines an account to be uncollectible and could differ from the current expected credit losses estimate as a result of a number of factors, including unanticipated changes in the overall economic environment or factors and risks surrounding a particular customer. Management believes its methodology for estimating current expected credit losses to be reliable and consistent with prior periods. However, additional credit losses may be incurred if the financial condition of our customers were to deteriorate, and could have a material effect on the Company’s consolidated financial statements in future periods.
Bank Overdrafts [Policy Text Block] | Bank Overdrafts– The Company classifies bank overdrafts in current liabilities as accounts payable. Bank overdrafts generally represent checks written in excess of available cash that have not yet cleared the Company’s bank accounts. The majority of the Company’s bank accounts are zero balance accounts that are funded at the time items clear against the account by drawings against a line of credit; therefore, the outstanding checks represent bank overdrafts. Because the recipients of these checks have generally not yet received payment, the Company continues to classify bank overdrafts as accounts payable. Bank overdrafts are classified as changes in accounts payable in the cash flows from operating activities section of the Company’s Consolidated Statement of Cash Flows. Bank overdrafts as of December 31, 2021 and 2020 were approximately $0 and $7,638,000, respectively.
Accounts Receivable [Policy Text Block] | Accounts Receivable Other– The components of accounts receivable other consist primarily of amounts representing company driver advances, independent contractor advances, and equipment manufacturer warranties. Advances receivable from company drivers as of December 31, 2021 and 2020, were approximately $43,000 and $136,000, respectively. Accounts receivable from independent contractors as of December 31, 2021 and 2020, were approximately $1,037,000 and $614,000, respectively. Independent contractors are allowed to purchase items such as fuel, repairs and tolls on Company accounts in order to share in favorable pricing negotiated by the Company. Independent contractors and trip lease carriers are also allowed to receive advances for a portion of the revenue that they expect to receive for loads that they transport for the Company.
Marketable Securities, Policy [Policy Text Block] | Marketable Equity Securities– The Company’s investment in marketable equity securities is accounted for in accordance with ASC Topic 321, (“ASC Topic 321”), Investments - Equity Securities. ASC Topic 321 requires companies to measure equity investments at fair value, with changes in fair value recognized in net income. The Company’s investments in marketable securities consist of equity securities with readily determinable fair values. The cost of securities sold is based on the specific identification method. Realized and unrealized gains and losses, interest and dividends on marketable equity securities are included in non-operating income (expense) in our consolidated statements of operations. For additional information with respect to marketable equity securities, see Note 4 – Marketable Equity Securities.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] | Impairment of Long-Lived Assets– The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of a long-lived asset may not be recoverable. An impairment loss would be recognized if the carrying amount of the long-lived asset is not recoverable, and it exceeds its fair value. For long-lived assets classified as held and used, if the carrying value of the long-lived asset exceeds the sum of the future net undiscounted cash flows, it is not recoverable. No impairment losses were recorded during 2021 or 2020.
Property, Plant and Equipment, Policy [Policy Text Block] | Property and Equipment– Property and equipment is recorded at historical cost, less accumulated depreciation. For financial reporting purposes, the cost of such property is depreciated principally by the straight-line method. For tax reporting purposes, accelerated depreciation or applicable cost recovery methods are used. Depreciation is recognized over the estimated asset life, considering the estimated salvage value of the asset. Such salvage values are based on estimates using expected market values for used equipment and the estimated time of disposal which in many cases include guaranteed residual values by the manufacturers. Gains and losses are reflected in the year of disposal. The following is a table reflecting estimated ranges of asset useful lives by major class of depreciable assets:
Asset Class |  | Estimated Asset Life (in years) |
Service vehicles |  |  | 3 | - | 5 |
Office furniture and equipment |  |  | 3 | - | 10 |
Revenue equipment |  |  | 3 | - | 10 |
Structures and improvements |  |  | 5 | - | 40 |
The Company’s management periodically evaluates whether changes to estimated useful lives and/or salvage values are necessary to ensure its estimates accurately reflect the economic use of the assets. During 2021, management determined that no material adjustments to the estimated useful lives or salvage values of trucks or trailers were necessary based on such an evaluation.
Inventory Supplies, Policy [Policy Text Block] | Inventory– Inventories consist primarily of revenue equipment parts, tires, supplies, and fuel. Inventories are carried at the lower of cost or market with cost determined using the first in, first out method.
Prepaid Tires [Policy Text Block] | Prepaid Tires– Tires purchased with revenue equipment are capitalized as a cost of the related equipment. Replacement tires are included in prepaid expenses and deposits and are amortized over a 24-month period. Amounts paid for the recapping of tires are expensed when incurred.
Advertising Cost [Policy Text Block] | Advertising Expense– Advertising costs are expensed as incurred and totaled approximately $1,154,000, $1,102,000 and $1,269,000 for the years ended December 31, 2021, 2020 and 2019, respectively.
Maintenance Cost, Policy [Policy Text Block] | Repairs and Maintenance– Repairs and maintenance costs are expensed as incurred.
Self Insurance Liability [Policy Text Block] | Self-Insurance Liability– A liability is recognized for known health, workers’ compensation, cargo damage, property damage, and auto liability damage claims. An estimate of the incurred but not reported claims for each type of liability is made based on historical claims made, estimated frequency of occurrence, and considering changing factors that contribute to the overall cost of insurance. See Note 6 – Claims Liabilities for more information regarding insurance and claims liability.
Income Tax, Policy [Policy Text Block] | Income Taxes– The Company applies the asset and liability method of accounting for income taxes, under which deferred taxes are determined based on the temporary differences between the financial statement and tax basis of assets and liabilities using tax rates expected to be in effect during the years in which the basis differences reverse. A valuation allowance is recorded when it is more likely than not that some or all of the deferred tax assets will not be realized. See Note 12 – Federal and State Income Taxes for more information regarding income taxes. The application of income tax law to multi-jurisdictional operations such as those performed by the Company is inherently complex. Laws and regulations in this area are voluminous and often ambiguous. As such, we may be required to make subjective assumptions and judgments regarding our income tax exposures. Interpretations of and guidance surrounding income tax laws and regulations may change over time which could cause changes in our assumptions and judgments that could materially affect amounts recognized in the consolidated financial statements. We recognize the impact of tax positions in our financial statements. These tax positions must meet a more-likely-than-not recognition threshold to be recognized and tax positions that previously failed to meet the more-likely-than-not threshold are recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not threshold are derecognized in the first subsequent financial reporting period in which that threshold is no longer met. We recognize potential accrued interest and penalties related to unrecognized tax benefits within the consolidated statements of income as income tax expense. In determining whether a tax asset valuation allowance is necessary, management, in accordance with the provisions of ASC 740-10-30, weighs all available evidence, both positive and negative to determine whether, based on the weight of that evidence, a valuation allowance is necessary. If negative conditions exist which indicate a valuation allowance might be necessary, consideration is then given to what effect the future reversals of existing taxable temporary differences and the availability of tax strategies might have on future taxable income to determine the amount, if any, of the required valuation allowance. As of December 31, 2021 and 2020, management determined that the future reversals of existing taxable temporary differences and available tax strategies would generate sufficient future taxable income to realize its tax assets and therefore a valuation allowance was not necessary.
Revenue [Policy Text Block] | Revenue Recognition– Revenue is recognized over time as the freight progresses towards its destination and the transportation service obligation is fulfilled. For loads picked up during the reporting period, but delivered in a subsequent reporting period, revenue is allocated to each period based on the transit time in each period as a percentage of total transit time. There are no assets or liabilities recorded in conjunction with revenue recognized, other than accounts receivable and current expected credit losses.
Earnings Per Share, Policy [Policy Text Block] | Earnings Per Share– The Company computes basic earnings per share (“EPS”) by dividing net income (loss) available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted EPS includes the potential dilution that could occur from stock-based awards and other stock-based commitments using the treasury stock or the as if converted methods, as applicable. The difference between the Company's weighted-average shares outstanding and diluted shares outstanding is due to the dilutive effect of stock options for all periods presented. See Note 14 – Earnings per Share for more information regarding the computation of diluted EPS.
Fair Value Measurement, Policy [Policy Text Block] | Fair Value Measurements– Certain financial assets and liabilities are measured at fair value within the financial statements on a recurring basis. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. For additional information with respect to fair value measurements, see Note 18 – Fair Value of Financial Instruments.
Segment Reporting, Policy [Policy Text Block] | Reporting Segments– The Company's operations are all in the motor carrier segment and are aggregated into a single reporting segment in accordance with the aggregation criteria under United States generally accepted accounting principles (“GAAP”). The Company provides truckload transportation services as well as brokerage and logistics services to customers throughout the United States and portions of Canada and Mexico. Truckload transportation services revenues, excluding fuel surcharges, represented 67.0%, 76.9% and 82.7% of total revenues, excluding fuel surcharges, for the twelve months ended December 31, 2021, 2020 and 2019, respectively. Remaining revenues, excluding fuel surcharges, for each respective year were generated by brokerage and logistics services.
Concentration Risk, Credit Risk, Policy [Policy Text Block] | Concentrations of Credit Risk– The Company performs ongoing credit evaluations and generally does not require collateral from its customers. The Company maintains reserves for potential credit losses. In view of the concentration of the Company’s revenues and accounts receivable among a limited number of customers within the automobile industry, the financial health of this industry is a factor in the Company’s overall evaluation of accounts receivable.
Subsequent Events, Policy [Policy Text Block] | Subsequent Events– On March 8, 2022, the Company retired 12,268,395 shares of its treasury stock. When treasury shares are retired, we allocate the excess of the repurchase price over the par value of shares acquired to both retained earnings and paid-in capital. The portion allocated to paid-in capital is determined by applying the average paid-in capital per share, and the remaining portion is recorded to retained earnings. There was no effect on the Company’s overall equity position as a result of the retirement. On March 8, 2022, the Company’s Board of Directors declared a 2-for-1 forward stock split of its common stock in the form of a 100% stock dividend, payable on March 29, 2022, to stockholders of record on March 18, 2022. Under the terms of the stock split, the Company’s stockholders will receive a dividend of one share for every share held on the record date. The dividend will be paid in authorized but unissued shares of common stock of the Company. The additional shares will be distributed by the Company’s transfer agent, Computershare, and the per share price of the Company’s common stock will adjust accordingly on The Nasdaq Stock Market.
Risks and Uncertainties (COVID-19) [Policy Text Block] | Risks and Uncertainties (COVID-19)– In March 2020, the World Health Organization declared the novel strain of coronavirus (“COVID-19”) a global pandemic, and the President of the United States declared the COVID-19 outbreak a national emergency. The rapid spread of the pandemic and the continuously evolving responses to combat it have had an increasingly negative impact on the global economy. In view of the rapidly changing business environment, unprecedented market volatility and heightened degree of uncertainty resulting from COVID-19, we are currently unable to fully determine its future impact on our business. We continue to monitor the progression of the pandemic, further government responses and development of treatments and vaccines and the resulting potential effect on our financial position, results of operations, cash flows and liquidity. These events could have an impact in future periods on certain estimates used in the preparation of our financial results, including, but not limited to impairment of long-lived assets, income tax provision and recoverability of certain receivables. Should the pandemic continue for an even further extended period of time, the impact on our operations could have a material adverse effect on our financial condition, results of operations, cash flows and liquidity.
Foreign Currency Transactions and Translations Policy [Policy Text Block] | Foreign Currency Transactions– The functional currency of the Company’s foreign branch office in Mexico is the U.S. dollar. The Company remeasures the monetary assets and liabilities of this branch office, which are maintained in the local currency ledgers, at the rates of exchange in effect at the end of the reporting period. Revenues and expenses recorded in the local currency during the period are remeasured using average exchange rates for each period. Non-monetary assets and liabilities are remeasured using historical rates. Any resulting exchange gain or loss from the remeasurement process is included in non-operating income in the Company’s consolidated statements of operations.
New Accounting Pronouncements, Policy [Policy Text Block] | Recent Accounting Pronouncements– In March 2020, the FASB issued Accounting Standards Update No. 2020-04, (“ASU 2020-04”), Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. ASU 2020-04 was issued to provide optional guidance for a limited period of time to ease the potential burden in accounting for reference rate reform on financial reporting. ASU 2020-04 is effective as of March 12, 2020 through December 31, 2022. The Company has evaluated the provisions of this standard and determined that it is applicable to our line of credit and investment margin account. The London Interbank Offered Rate (“LIBOR”) is the basis for interest charges on outstanding borrowings for our line of credit. During the year 2021, the index for interest charges on the Company’s investment margin accounts was transitioned to the Secured Overnight Financing Rate (“SOFR”). The new index rate did not vary materially from LIBOR at the time of transition. The scheduled discontinuation of LIBOR is not expected to materially alter any provisions of either of these debt instruments, except for the identification of a replacement reference rate for our line of credit. The Company has evaluated the new guidance and does not expect it to have a material impact on its financial condition, results of operations, or cash flows.

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- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4273-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123372394&loc=d3e18823-107790 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684 + Details
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- Definition Disclosure of accounting policy for recognizing and measuring the impairment of long-lived assets. An entity also may disclose its accounting policy for long-lived assets to be sold. This policy excludes goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 05 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226317&loc=d3e202-110218 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.CC) -URI http://asc.fasb.org/extlink&oid=27011434&loc=d3e125687-122742 + Details
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