Pamt (PAMT) 10-K 11 Mar 22 2021 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 21, 2022	Jun. 30, 2021
Document Information [Line Items]
Entity Central Index Key	0000798287
Entity Registrant Name	PAM TRANSPORTATION SERVICES INC
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2021
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Document Transition Report	false
Entity Incorporation, State or Country Code	DE
Entity File Number	0-1507
Entity Tax Identification Number	71-0633135
Entity Address, Address Line One	297 West Henri De Tonti Blvd
Entity Address, City or Town	Tontitown
Entity Address, State or Province	AR
Entity Address, Postal Zip Code	72770
City Area Code	479
Local Phone Number	361-9111
Title of 12(b) Security	Common Stock, $.01 par value
Trading Symbol	PTSI
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 96,153,411
Entity Common Stock, Shares Outstanding		11,132,401
Auditor Name	GRANT THORNTON LLP
Auditor Location	Tulsa, Oklahoma
Auditor Firm ID	248
ICFR Auditor Attestation Flag	true

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 18,509,000	$ 337,000
Accounts receivable—net:
Trade, less current estimated credit loss of $4,526 and $3,482, respectively	121,854,000	77,731,000
Other	7,092,000	5,127,000
Inventories	1,456,000	1,345,000
Prepaid expenses and deposits	10,962,000	10,172,000
Marketable equity securities	39,424,000	27,941,000
Income taxes refundable	277,000	868,000
Total current assets	199,574,000	123,521,000
PROPERTY AND EQUIPMENT:
Land	19,718,000	18,486,000
Structures and improvements	33,534,000	32,275,000
Revenue equipment	520,840,000	592,476,000
Office furniture and equipment	11,211,000	10,439,000
Total property and equipment	585,303,000	653,676,000
Accumulated depreciation	(201,124,000)	(202,851,000)
Net property and equipment	384,179,000	450,825,000
OTHER ASSETS	3,628,000	4,246,000
TOTAL ASSETS	587,381,000	578,592,000
CURRENT LIABILITIES:
Accounts payable	43,381,000	46,102,000
Accrued expenses and other liabilities	14,114,000	26,601,000
Income taxes payable	4,364,000	0
Current maturities of long-term debt	49,544,000	57,776,000
Total current liabilities	111,403,000	130,479,000
Long-term debt—less current portion	172,733,000	228,330,000
Deferred income taxes	86,715,000	68,883,000
Other long-term liabilities	420,000	919,000
Total liabilities	371,271,000	428,611,000
COMMITMENTS AND CONTINGENCIES (Note 16)
STOCKHOLDERS’ EQUITY
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued	0	0
Common stock, $.01 par value, 40,000,000 shares authorized; 23,400,796 and 23,391,438 shares issued; 11,174,011 and 11,455,790 shares outstanding at December 31, 2021 and 2020, respectively	234,000	117,000
Additional paid-in capital	84,472,000	84,148,000
Accumulated Other Comprehensive Income	0	0
Treasury stock, at cost; 12,226,785 and 11,935,648 shares at December 31, 2021 and 2020, respectively	(169,946,199)	(159,118,000)
Retained earnings	301,350,000	224,834,000
Total stockholders’ equity	216,110,000	149,981,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 587,381,000	$ 578,592,000

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Trade, allowance	$ 4,526	$ 3,482	$ 2,952	$ 2,224
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	40,000,000	40,000,000
Common stock, issued (in shares)	23,400,796	23,391,438
Common stock, outstanding (in shares)	11,174,011	11,455,790
Treasury stock (in shares)	12,226,785	11,935,648

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING REVENUES:
Operating revenues	$ 707,120	$ 486,825	$ 514,177
OPERATING EXPENSES AND COSTS:
Salaries, wages and benefits	141,019	124,098	129,738
Operating supplies and expenses	102,228	84,275	98,420
Rents and purchased transportation	279,016	165,984	168,399
Depreciation	55,012	56,168	55,107
Insurance and claims	18,792	8,866	35,622
Other	12,294	13,138	13,761
(Gain) Loss on disposition of equipment	(1,446)	373	583
Total operating expenses and costs	606,915	452,902	501,630
OPERATING INCOME	100,205	33,923	12,547
NON-OPERATING INCOME (EXPENSE)	10,339	(1,699)	6,222
INTEREST EXPENSE	(8,039)	(8,815)	(8,654)
INCOME BEFORE INCOME TAXES	102,505	23,409	10,115
FEDERAL & STATE INCOME TAX EXPENSE:
Current	8,157	220	590
Deferred	17,832	5,362	1,625
Total federal & state income tax expense	25,989	5,582	2,215
Net income	$ 76,516	$ 17,827	$ 7,900
EARNINGS PER COMMON SHARE:
Basic (in dollars per share)	$ 6.74	$ 1.55	$ 0.68
Diluted (in dollars per share)	$ 6.69	$ 1.55	$ 0.67
AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	11,357	11,504	11,663
Diluted (in shares)	11,432	11,536	11,760
Freight Transportation Service [Member]
OPERATING REVENUES:
Operating revenues	$ 641,253	$ 438,987	$ 439,511
Fuel Surcharge [Member]
OPERATING REVENUES:
Operating revenues	$ 65,867	$ 47,838	$ 74,666

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	11,914
Balance at Dec. 31, 2018		$ 116	$ 82,776	$ (142,552)	$ 199,107	$ 139,447
Net income					7,900	7,900
Restricted stock issued (in shares)	88
Restricted stock issued		1				1
Treasury stock repurchases (in shares)	(504)
Treasury stock repurchases				(14,285)		(14,285)
Share-based compensation			912			912
Treasury stock repurchases (in shares)	504
Net income					7,900	7,900
Balance (in shares) at Dec. 31, 2019	11,498
Balance at Dec. 31, 2019		117	83,688	(156,837)	207,007	133,975
Net income					17,827	17,827
Restricted stock issued (in shares)	80
Treasury stock repurchases (in shares)	122
Treasury stock repurchases				(2,281)		(2,281)
Share-based compensation			460			460
Treasury stock repurchases (in shares)	(122)
Net income					17,827	17,827
Balance (in shares) at Dec. 31, 2020	11,456
Balance at Dec. 31, 2020		117	84,148	(159,118)	224,834	149,981
Net income					76,516	76,516
Restricted stock issued (in shares)	9
Treasury stock repurchases (in shares)	(291)
Treasury stock repurchases				(10,828)		(10,828)
Share-based compensation			441			441
Treasury stock repurchases (in shares)	291
Net income					76,516	76,516
Stock Split		117	117
Stock Split		(117)	(117)
Balance (in shares) at Dec. 31, 2021	11,174
Balance at Dec. 31, 2021		$ 234	$ 84,472	$ (169,946)	$ 301,350	$ 216,110

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES:
Net income	$ 76,516	$ 17,827	$ 7,900
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	55,012	56,168	55,107
Bad debt expense	1,044	530	728
Stock compensation—net of excess tax benefits	441	460	912
Provision for deferred income taxes	17,832	5,362	1,625
Recognized (gain) loss on marketable equity securities	(8,197)	3,463	(4,753)
(Gain) loss on sale or disposal of equipment	(1,446)	373	583
Changes in operating assets and liabilities:
Accounts receivable	(47,132)	(17,835)	884
Prepaid expenses, deposits, inventories, and other assets	(865)	(1,780)	1,865
Income taxes refundable	591	(60)	1,372
Income taxes payable	4,364	0	0
Trade accounts payable	5,945	20,880	(2,233)
Accrued expenses and other liabilities	(2,365)	(17,798)	20,307
Net cash provided by operating activities	101,740	67,590	84,297
INVESTING ACTIVITIES:
Purchases of property and equipment	(19,144)	(48,226)	(79,354)
Proceeds from disposition of equipment	31,680	17,418	14,263
Sales of marketable equity securities	3,109	2,039	2,984
Purchases of marketable equity securities, net of return of capital	(6,395)	(3,923)	(203)
Net cash provided by (used in) investing activities	9,250	(32,692)	(62,310)
FINANCING ACTIVITIES:
Borrowings under line of credit	654,212	517,668	590,902
Repayments under line of credit	(672,458)	(516,468)	(584,047)
Borrowings of long-term debt	21,408	26,837	60,203
Repayments of long-term debt	(75,115)	(64,411)	(70,917)
Borrowings under margin account	6,510	7,068	527
Repayments under margin account	(16,547)	(3,292)	(4,334)
Repurchases of treasury stock	(10,828)	(2,281)	(14,285)
Net cash used in financing activities	(92,818)	(34,879)	(21,951)
NET INCREASE IN CASH AND CASH EQUIVALENTS	18,172	19	36
CASH AND CASH EQUIVALENTS—Beginning of year	337	318	282
CASH AND CASH EQUIVALENTS—End of year	18,509	337	318
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION—
Interest	8,144	8,798	8,612
Income taxes	3,870	281	671
NON-CASH INVESTING AND FINANCING ACTIVITIES—
Purchases of revenue equipment included in accounts payable	$ 383	$ 9,050	$ 366

Note 1 - Accounting Policies

Note 1 - Accounting Policies	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	1. ACCOUNTING POLICIES Description of Business and Principles of Consolidation 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 Cash and Cash Equivalents three may Accounts Receivable and Current Expected Credit Losses not may Bank Overdrafts not zero not December 31, 2021 2020 Accounts Receivable Other December 31, 2021 2020, December 31, 2021 2020, Marketable Equity Securities 321, 321” 321 For additional information with respect to marketable equity securities, see Note 4 Impairment of Long-Lived Assets may not not not 2021 2020. Property and Equipment 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, no Inventory first first Prepaid Tires Advertising Expense December 31, 2021, 2020 2019, Repairs and Maintenance Self-Insurance Liability not 6 Income Taxes not not 12 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 may We recognize the impact of tax positions in our financial statements. These tax positions must meet a more-likely-than- not not first no not first no In determining whether a tax asset valuation allowance is necessary, management, in accordance with the provisions of ASC 740 10 30, December 31, 2021 2020, not Revenue Recognition no Earnings Per Share 14 Fair Value Measurements 18 Reporting Segments twelve December 31, 2021, 2020 2019, Concentrations of Credit Risk not Subsequent Events March 8, 2022, no On March 8, 2022, 1 100% March 29, 2022, March 18, 2022. Risks and Uncertainties (COVID- 19 March 2020, 19” 19 19, not Foreign Currency Transactions Recent Accounting Pronouncements March 2020, No. 2020 - 04, 2020 - 04” 848 2020 - 04 2020 - 04 March 12, 2020 December 31, 2022 . 2021, not not not

Note 2 - Revenue Recognition

Note 2 - Revenue Recognition	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	2. REVENUE RECOGNITION The Company has a single performance obligation, to transport our customer’s freight from a specified origin to a specified destination. The Company has the discretion to choose to self-transport or to arrange for alternate transportation to fulfill the performance obligation. Where the Company decides to self-transport the freight, the Company classifies the service as truckload services, and where the Company arranges for alternate transportation of the freight, the Company classifies the service as brokerage and logistics services. In either case, the Company is paid a rate to transport freight from its origin location to a specified destination. Because the primary factors influencing revenue recognition, including performance obligation, customer base, and timing of revenue recognition are the same for both of its service categories, the Company utilizes the same revenue recognition method throughout its operations. Company revenue is generated from freight transportation services performed utilizing heavy truck trailer combinations. While various ownership arrangements may third not In fulfilling the Company’s obligation to transport freight from a specified origin to a specified destination, control of freight is transferred to us at the point it has been loaded into the driver’s trailer, the doors are sealed and the driver has signed a bill of lading, which is the basic transportation agreement that establishes the nature, quantity and condition of the freight loaded, responsibility for invoice payment, and pickup and delivery locations. Our revenue is generated, and our customer receives benefit, as the freight progresses towards delivery locations. In the event our customer cancels the shipment at some point prior to the final delivery location and re-consigns the shipment to an alternate delivery location, we are entitled to receive payment for services performed for the partial shipment. Shipments are generally conducted over a relatively short time span, generally one three one Freight Revenue – revenue generated by the performance of the freight transportation service, including any accessorial service, provided to customers. Fuel Surcharge Revenue – revenue designed to adjust freight revenue rates to an agreed-upon base cost for diesel fuel. Diesel fuel prices can fluctuate widely during the term of a contract with a customer. At the point that freight revenue rates are negotiated with customers, a sliding scale is agreed upon that approximately adjusts diesel fuel costs to an agreed-upon base amount. In general, as fuel prices increase, revenue from fuel surcharge increases, so that diesel fuel cost is adjusted to the approximate base amount agreed upon. 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

Note 3 - Trade Accounts Receiva

Note 3 - Trade Accounts Receivable	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Financing Receivables [Text Block]	3. TRADE ACCOUNTS RECEIVABLE The Company's receivables result primarily from the sale of transportation and logistics services. The Company performs ongoing credit evaluations of its customers and generally does not December 31, 2021 2020: 2021 2020 (in thousands) Billed $ 105,992 $ 68,584 Unbilled 20,388 12,629 Current estimated credit losses (4,526 ) (3,482 ) Total accounts receivable—net $ 121,854 $ 77,731 An analysis of changes in current estimated credit losses for the years ended December 31, 2021, 2020, 2019 2021 2020 2019 (in thousands) Balance—beginning of year $ 3,482 $ 2,952 $ 2,224 Provision for bad debts 1,044 530 728 Charge-offs - - - Recoveries - - - Balance—end of year $ 4,526 $ 3,482 $ 2,952

Note 4 - Marketable Equity Secu

Note 4 - Marketable Equity Securities	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	4. MARKETABLE EQUITY SECURITIES The Company accounts for its marketable securities in accordance with ASC Topic 321, 321 Marketable equity securities are carried at fair value, with changes in fair market value included in the determination of net income. The fair market value of marketable equity securities is determined based on quoted market prices in active markets. See Note 18 The following table sets forth cost, market value and unrealized gain on equity securities classified as available-for-sale as of December 31, 2021 2020. 2021 2020 (in thousands) Available-for-sale securities: Fair market value $ 39,424 $ 27,941 Cost 29,385 25,860 Unrealized gain $ 10,039 $ 2,081 The following table sets forth the gross unrealized gains and losses on the Company’s marketable securities as of December 31, 2021 2020. 2021 2020 (in thousands) Available-for-sale securities: Gross unrealized gains $ 12,458 $ 7,048 Gross unrealized losses 2,419 4,967 Net unrealized gains $ 10,039 $ 2,081 For the years ended December 31, 2021, 2020 2019, The following table shows the Company’s net realized (losses) gains during 2021, 2020 2019 2021 2020 2019 (in thousands) Realized (losses) gains: Sale proceeds $ 3,109 $ 2,039 $ 2,984 Cost of securities sold 3,199 2,216 1,929 Realized (losses) / gains $ (90 ) $ (177 ) $ 1,055 At December 31, 2021, December 31, 2020, The market value of the Company’s equity securities are periodically used as collateral against any outstanding margin account borrowings. As of December 31, 2021 2020, December 31, 2021 2020,

Note 5 - Accrued Expenses and O

Note 5 - Accrued Expenses and Other Liabilities	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	5. ACCRUED EXPENSES AND OTHER LIABILITIES Accrued expenses and other liabilities at December 31 2021 2020 (in thousands) Payroll $ 1,529 $ 1,621 Accrued vacation 877 835 Taxes—other than income 2,674 6,881 Interest 196 301 Driver escrows 1,643 1,782 Margin account borrowings 1,214 11,251 Self-insurance claims and legal reserves 5,437 3,303 Current portion of Right-of-Use liability 544 627 Total accrued expenses and other liabilities $ 14,114 $ 26,601 The Company’s accounts payable of $43,381,000 includes $383,000 in payables for purchases of revenue equipment.

Note 6 - Claims Liabilities

Note 6 - Claims Liabilities	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block]	6. CLAIMS LIABILITIES The Company maintains cargo insurance coverage to protect it from certain business risks. This policy has a per occurrence deductible of $10,000. Since September 1, 2020, September 1, 2019 August 31, 2020, September 1, 2019, $2.0 The Company maintains workers’ compensation coverage in Arkansas, Florida, Ohio, Oklahoma, and Mississippi with a $0.5 million self-insured retention and a $0.5 million per occurrence excess policy. The Company has elected to opt out of workers’ compensation coverage in Texas and is providing coverage through the P.A.M. Texas Injury Plan. The Company has accrued for estimated losses to pay such claims as well as claims incurred but not not not 5

Note 7 - Long-term Debt

Note 7 - Long-term Debt	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Long-term Debt [Text Block]	7. LONG-TERM DEBT Long-term debt at December 31, 2021 2020 (in thousands) Line of credit with a bank—due July 1, 2024, and collateralized by accounts receivable (1) - 18,246 Equipment financing (2) 206,539 250,572 Real estate financing (3) 15,738 17,288 Total long-term debt 222,277 286,106 Less current maturities (49,544 ) (57,776 ) Long-term debt—net of current maturities $ 172,733 $ 228,330 ( 1 Line of credit agreement with a bank provides for maximum borrowings of $60.0 million and contains certain restrictive covenants that must be maintained by the Company on a consolidated basis. Borrowings on the line of credit are at an interest rate of LIBOR as of the first December 31, 2021 4.00:1. 2021. December 31, 2021, December 31, 2020, ( 2 Equipment financings consist of installment obligations for revenue equipment purchases, payable in various monthly installments with various maturity dates through March 2028, December 31, 2021 ( 3 Real estate financing consisting of an installment obligation for the purchase of real estate in Laredo, TX, payable in 120 installments at an interest rate of 3.02% and maturing in August 2030. The Company has provided letters of credit to third December 31, 2021 December 31, 2020, third Scheduled annual maturities on long-term debt outstanding at December 31, 2021, 2022 $ 49,544 2023 47,915 2024 50,534 2025 40,766 2026 21,805 Thereafter 11,713 Total $ 222,277

Note 8 - Noncash Investing and

Note 8 - Noncash Investing and Financing Activities	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Noncash Investing and Financing Activities Disclosure [Text Block]	8. NONCASH INVESTING AND FINANCING ACTIVITIES The Company financed approximately $36.1 million and $80.7 million in equipment purchases during 2021 2020,

Note 9 - Capital Stock

Note 9 - Capital Stock	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	9. CAPITAL STOCK The Company's authorized capital stock consists of 40,000,000 shares of common stock, par value $.01 $.01 December 31, 2021, December 31, 2020, No December 31, 2021 2020. Common Stock The holders of our common stock, subject to such rights as may one no Preferred Stock Preferred stock may may December 31, 2021, no Treasury Stock In July 2021, 1 100% August 16, 2021), “2021 2021 July 27, 2021 August 26, 2021. August 31, 2021. December 31, 2021. In May 2019, “2019 2019 May 13, 2019 June 11, 2019. June 13, 2019. December 31, 2019. The Company’s stock repurchase program has been extended and expanded several times, most recently in November 2021, September 2011 2021 2020, The Company accounts for Treasury stock using the cost method, and as of December 31, 2021,

Note 10 - Segment Information,

Note 10 - Segment Information, Significant Customers, Industry Concentration and Geographic Areas	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Segment Reporting and Concentration Risk Disclosure [Text Block]	10. SEGMENT INFORMATION, SIGNIFICANT CUSTOMERS, INDUSTRY CONCENTRATION AND GEOGRAPHIC AREAS The Company's revenues for 2021, 2020 2019 The table below presents revenue dollars and percentages by geographic area: Year Ended December 31, 2021 2020 2019 (in thousands) Amount Percent Amount Percent Amount Percent United States - domestic shipments $ 474,291 67.9 $ 316,542 66.1 $ 326,559 63.5 Shipments to or from Mexico 223,315 32.0 161,412 33.7 186,392 36.3 Shipments to or from Canada 891 0.1 1,156 0.2 1,226 0.2 Total Operating Revenues $ 698,497 100 % $ 479,110 100 % $ 514,177 100 % Our five 2021, 2020 2019, 2021, 2020 2019, We also provide transportation services to other manufacturers who are suppliers for automobile manufacturers. Approximately 27%, 30% and 40% of our revenues were derived from transportation services provided to the automobile industry during 2021, 2020 2019, Accounts receivable from the three December 31, 2021 2020,

Note 11 - Dividends

Note 11 - Dividends	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Dividend Payment Restrictions [Text Block]	11. DIVIDENDS The Company has paid cash dividends in the past; however, the Company currently intends to retain future earnings and does not

Note 12 - Federal and State Inc

Note 12 - Federal and State Income Taxes	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Income Tax Disclosure [Text Block]	12. FEDERAL AND STATE INCOME TAXES Under GAAP, deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and for income tax reporting purposes. Significant components of the Company’s deferred tax liabilities and assets at December 31 2021 2020 (in thousands) Deferred tax liabilities: Property and equipment $ 84,081 $ 100,736 Unrealized gains on securities 2,580 2,580 Prepaid expenses and other 2,783 2,599 Total deferred tax liabilities 89,444 105,915 Deferred tax assets: Current expected credit losses 1,165 896 Tax credit carryforwards - 988 Compensated absences 185 189 Self-insurance allowances 1,207 674 Marketable equity securities - 2,129 Net operating loss carryover - 32,031 Other 172 125 Total deferred tax assets 2,729 37,032 Net deferred tax liability $ 86,715 $ 68,883 The reconciliation between the effective income tax rate and the statutory Federal income tax rate for the years ended December 31, 2021, 2020 2019 2021 2020 2019 (in thousands) Amount Percent Amount Percent Amount Percent Federal income tax at statutory rate $ 21,526 21.0 $ 4,916 21.0 $ 2,124 21.0 Nondeductible per diem and meals - - 321 1.4 - - Other nondeductible expenses, net - - - - 342 3.4 State income taxes/other, net 4,463 4.4 345 1.5 (251 ) (2.5 ) Total income tax expense $ 25,989 25.4 $ 5,582 23.9 $ 2,215 21.9 The provision (benefit) for income taxes consisted of the following: 2021 2020 2019 (in thousands) Current: Federal $ 6,314 $ (62 ) $ (56 ) State 1,843 282 646 Total current income tax provision 8,157 220 590 Deferred: Federal 13,720 4,860 2,177 State 4,112 502 (552 ) Total deferred income tax provision 17,832 5,362 1,625 Total income tax provision expense 25,989 $ 5,582 $ 2,215 In March 2020, not not In determining whether a tax asset valuation allowance is necessary, management, in accordance with the provisions of ASC 740 10 30, December 31, 2021 2020, not The Company recognizes a tax benefit from an uncertain tax position only if it is more likely than not December 31, 2021, not 2021 2020, not The Company and its subsidiaries are subject to U.S. and Canadian federal income tax laws as well as the income tax laws of multiple state jurisdictions. The major tax jurisdictions in which the Company operates generally provide for a deficiency assessment statute of limitation period of three 2018

Note 13 - Stock-based Compensat

Note 13 - Stock-based Compensation	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	13. STOCK-BASED COMPENSATION The Company maintains a stock incentive plan under which incentive and nonqualified stock options and other stock awards may March 13, 2014, May 29, 2014 2014 2006 1 August 2021) 2014 not The Company granted unrestricted shares of its common stock to its non-employee directors and granted restricted shares of common stock to certain key employees during all periods presented. All share and per share amounts set forth below have been adjusted to reflect the impact of the 2-for- 1 August 2021. In March 2021, In April 2021, four In January 2020, four In March 2020, In April 2020, In August 2020, 2022, 2023, 2024 2027 2025 2026. In August 2020, four In April 2019, In May 2019, During 2021 2020, December 31, 2021 December 31, 2020. December 31, 2021, The grant date fair value of stock and stock options vested during 2021, 2020 2019 2021 eight first 2021. 2021. 2021. December 31, 2021, 2022 $ 408,000 2023 $ 343,000 2024 $ 334,000 2025 $ 363,000 2026 $ 288,000 2027 $ 111,000 Total pre-tax stock-based compensation expense, recognized in salaries, wages and benefits was approximately $461,000 during 2020 eight first 2020 one second 2020. 2020. 2020. Total pre-tax stock-based compensation expense, recognized in salaries, wages and benefits was approximately $912,000 during 2019 first 2019. 2019. 2019. There were no options granted during 2021, 2020, 2019. A summary of the status of the Company’s non-vested restricted stock as of December 31, 2021 December 31, 2021, Restricted Stock Number of Shares Weighted- Average Grant Date Fair Value Nonvested—January 1, 2021 122,070 $ 18.06 Granted 7,608 30.40 Canceled/forfeited/expired (714 ) 28.23 Vested (9,358 ) 21.71 Nonvested—December 31, 2021: 119,606 $ 18.5

Note 14 - Earnings Per Share

Note 14 - Earnings Per Share	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Earnings Per Share [Text Block]	14. EARNINGS PER SHARE Basic earnings per common share was computed by dividing net income by the weighted average number of shares outstanding (on a stock split adjusted basis) during the period. Diluted earnings per common share was calculated as follows: For the Year Ended December 31, 2021 2020 2019 (in thousands, except per share data) Net income $ 76,516 $ 17,827 $ 7,900 Basic weighted average common shares outstanding (1) 11,357 11,504 11,663 Dilutive effect of common stock equivalents 75 32 97 Diluted weighted average common shares outstanding (1) 11,432 11,536 11,760 Basic earnings per share $ 6.74 $ 1.55 $ 0.68 Diluted earnings per share $ 6.69 $ 1.55 $ 0.67 ( 1 As adjusted for the Company’s 2-for- 1 August 2021

Note 15 - Benefit Plan

Note 15 - Benefit Plan	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Retirement Benefits [Text Block]	15. BENEFIT PLAN The Company sponsors a benefit plan for the benefit of all eligible employees. The plan qualifies under Section 401 five 2021, 2020 2019,

Note 16 - Commitments and Conti

Note 16 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	16. COMMITMENTS AND CONTINGENCIES We are a defendant in a lawsuit which was filed on August 6, 2021, January 1, 2020 January 14, 2022 not We were a defendant in a collective- and class-action lawsuit which was filed on December 9, 2016, December 9, 2013, December 31, 2019, July 2020, August 2020. not On March 31, 2020, May 29, 2019 first nine 2020, We are involved in certain claims and pending litigation arising from the ordinary conduct of business. We also provide accruals for claims within our self-insured retention amounts. On September 1, 2019, September 1, 2020, not not

Note 17 - Leases

Note 17 - Leases	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Lessor, Operating Leases [Text Block]	17. LEASES Right-of-Use Leases During 2019, five not 2021 2020, not 842, December 31, 2021. not five not not December 31, 2021. Scheduled amounts and timing of cash flows arising from operating lease payments at December 31, 2021, (in thousands) Maturity of Lease Liabilities 2022 $ 544 2023 340 2024 114 2025 - 2026 and Thereafter - Total undiscounted operating lease payments $ 998 Less: Imputed interest (35 ) Present value of operating lease liabilities $ 963 Balance Sheet Classification Right-of-use assets (recorded in other non-current assets) $ 963 Current lease liabilities (recorded in other current liabilities) $ 543 Long-term lease liabilities (recorded in other long-term liabilities) 420 Total operating lease liabilities $ 963 Other Information Weighted-average remaining lease term for operating leases 1.98 years Weighted-average discount rate for operating leases 3.65 % Cash Flows No new right-of-use assets were recognized as non-cash asset additions that resulted from new operating lease liabilities during the years ended December 31, 2021 December 31, 2020, December 31, 2021 December 31, 2020, Cash Paid for Operating Leases Twelve Months Ended December 31, 2021 2020 (in thousands) Right-of-Use leases $ 583 $ 552 Short-term leases (1) 2,173 2,177 Total $ 2,756 $ 2,729 ( 1 Short-term lease cost includes leases with a term of twelve Lease Revenue The Company has a lease-purchase program whereby we offer independent contractors the opportunity to lease a Company-owned truck. The terms associated with these leases require weekly lease payments over the term of the leases which range from 5 December 31, 2021 December 31, 2020 Leases in our lease-purchase program expire at various dates through 2025. December 31, 2021 2020 not December 31, 2021, The Company leases dock space to a related party at our Laredo, Texas terminal and warehouse and office space to an unrelated lessee at a second December 31, 2021, December 31, 2021 19 The Company's operating lease revenue is disclosed in the table below. Twelve Months Ended December 31, 2021 2020 Leased truck revenue (recorded in revenue, before fuel surcharge) $ 7,747 $ 6,756 Leased building space revenue (recorded in non-operating income) 735 573 Total lease revenue $ 8,482 $ 7,329 Lease Receivable Future minimum operating lease payments receivable at December 31, 2021: 2022 $ 8,032 2023 5,203 2024 2,598 2025 74 2026 - Thereafter - Total future minimum lease payments receivable $ 15,907 Lease Payments to Related Parties Payments to related parties of $1,405,229 were made for real estate leases during 2021 one eleven During 2021 one one not December 31, 2021. The Company leases office and shop facilities to a related party. At December 31, 2021, December 31, 2021

Note 18 - Fair Value of Financi

Note 18 - Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Fair Value Disclosures [Text Block]	18. FAIR VALUE OF FINANCIAL INSTRUMENTS The Company’s financial instruments consist of cash and cash equivalents, marketable equity securities, accounts receivable, trade accounts payable, and borrowings. The Company follows the guidance for financial assets and liabilities measured on a recurring basis. The guidance defines fair value 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 and also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three may Level 1: Quoted market prices in active markets for identical assets or liabilities. Level 2: Inputs other than Level 1 not not Level 3: Unobservable inputs that are supported by little or no The Company utilizes the market approach to measure fair value for its financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. At December 31, 2021 2020, 2021 2020 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Marketable equity securities $ 39,424 $ 39,424 - - $ 27,941 $ 27,941 - - During 2021 2020, no The Company’s investments in marketable equity securities are recorded at fair value based on quoted market prices. The carrying value of cash and cash equivalents, accounts receivable, trade accounts payable, and accrued liabilities approximate fair value due to their short maturities. The carrying amount for the line of credit approximates fair value because the line of credit interest rate is adjusted frequently. For long-term debt other than the lines of credit, the fair values are estimated using discounted cash flow analyses, based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements. The carrying values and estimated fair values of this other long-term debt at December 31, 2021 2020 2021 2020 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value (in thousands) Long-term debt $ 222,277 $ 224,191 $ 267,860 $ 268,582 The Company has not

Note 19 - Related Party Transac

Note 19 - Related Party Transactions	12 Months Ended
	Dec. 31, 2021
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	19. RELATED PARTY TRANSACTIONS In the normal course of business, transactions for transportation and repair services, equipment, property leases and other services are conducted between the Company and companies affiliated with our Chairman and controlling stockholder. The Company recognized approximately $8,085,000, $9,897,000 and $2,691,000 in operating revenue and approximately $11,103,000, $6,791,000 and $9,190,000 in operating expenses in 2021, 2020, 2019, The Company purchased auto liability and workers’ compensation insurance through an unaffiliated insurance broker which was written by an insurance company affiliated with our Chairman and controlling stockholder. Premiums for auto liability coverage during 2021, 2020, 2019 2021, 2020, 2019 Amounts owed to the Company by these affiliates were approximately $636,000 and $2,348,000 at December 31, 2021 2020, December 31, 2021 2020, December 31, 2021 2020

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Description of Business and Principles of Consolidation 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
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents three may
Receivable [Policy Text Block]	Accounts Receivable and Current Expected Credit Losses not may
Bank Overdrafts [Policy Text Block]	Bank Overdrafts not zero not December 31, 2021 2020
Accounts Receivable [Policy Text Block]	Accounts Receivable Other December 31, 2021 2020, December 31, 2021 2020,
Marketable Securities, Policy [Policy Text Block]	Marketable Equity Securities 321, 321” 321 For additional information with respect to marketable equity securities, see Note 4
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment of Long-Lived Assets may not not not 2021 2020.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment 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, no
Inventory Supplies, Policy [Policy Text Block]	Inventory first first
Prepaid Tires [Policy Text Block]	Prepaid Tires
Advertising Cost [Policy Text Block]	Advertising Expense December 31, 2021, 2020 2019,
Maintenance Cost, Policy [Policy Text Block]	Repairs and Maintenance
Self Insurance Liability [Policy Text Block]	Self-Insurance Liability not 6
Income Tax, Policy [Policy Text Block]	Income Taxes not not 12 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 may We recognize the impact of tax positions in our financial statements. These tax positions must meet a more-likely-than- not not first no not first no In determining whether a tax asset valuation allowance is necessary, management, in accordance with the provisions of ASC 740 10 30, December 31, 2021 2020, not
Revenue [Policy Text Block]	Revenue Recognition no
Earnings Per Share, Policy [Policy Text Block]	Earnings Per Share 14
Fair Value Measurement, Policy [Policy Text Block]	Fair Value Measurements 18
Segment Reporting, Policy [Policy Text Block]	Reporting Segments twelve December 31, 2021, 2020 2019,
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations of Credit Risk not
Subsequent Events, Policy [Policy Text Block]	Subsequent Events March 8, 2022, no On March 8, 2022, 1 100% March 29, 2022, March 18, 2022.
Risks and Uncertainties (COVID-19) [Policy Text Block]	Risks and Uncertainties (COVID- 19 March 2020, 19” 19 19, not
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Transactions
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements March 2020, No. 2020 - 04, 2020 - 04” 848 2020 - 04 2020 - 04 March 12, 2020 December 31, 2022 . 2021, not not not

Note 1 - Accounting Policies (T

Note 1 - Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Property, Plant and Equipment [Table Text Block]	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

Note 3 - Trade Accounts Recei_2

Note 3 - Trade Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	2021 2020 (in thousands) Billed $ 105,992 $ 68,584 Unbilled 20,388 12,629 Current estimated credit losses (4,526 ) (3,482 ) Total accounts receivable—net $ 121,854 $ 77,731
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	2021 2020 2019 (in thousands) Balance—beginning of year $ 3,482 $ 2,952 $ 2,224 Provision for bad debts 1,044 530 728 Charge-offs - - - Recoveries - - - Balance—end of year $ 4,526 $ 3,482 $ 2,952

Note 4 - Marketable Equity Se_2

Note 4 - Marketable Equity Securities (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Marketable Securities [Table Text Block]	2021 2020 (in thousands) Available-for-sale securities: Fair market value $ 39,424 $ 27,941 Cost 29,385 25,860 Unrealized gain $ 10,039 $ 2,081
Unrealized Gain (Loss) on Investments [Table Text Block]	2021 2020 (in thousands) Available-for-sale securities: Gross unrealized gains $ 12,458 $ 7,048 Gross unrealized losses 2,419 4,967 Net unrealized gains $ 10,039 $ 2,081
Schedule of Realized Gain (Loss) [Table Text Block]	2021 2020 2019 (in thousands) Realized (losses) gains: Sale proceeds $ 3,109 $ 2,039 $ 2,984 Cost of securities sold 3,199 2,216 1,929 Realized (losses) / gains $ (90 ) $ (177 ) $ 1,055

Note 5 - Accrued Expenses and_2

Note 5 - Accrued Expenses and Other Liabilities (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	2021 2020 (in thousands) Payroll $ 1,529 $ 1,621 Accrued vacation 877 835 Taxes—other than income 2,674 6,881 Interest 196 301 Driver escrows 1,643 1,782 Margin account borrowings 1,214 11,251 Self-insurance claims and legal reserves 5,437 3,303 Current portion of Right-of-Use liability 544 627 Total accrued expenses and other liabilities $ 14,114 $ 26,601

Note 7 - Long-term Debt (Tables

Note 7 - Long-term Debt (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Long-term Debt Instruments [Table Text Block]	2021 2020 (in thousands) Line of credit with a bank—due July 1, 2024, and collateralized by accounts receivable (1) - 18,246 Equipment financing (2) 206,539 250,572 Real estate financing (3) 15,738 17,288 Total long-term debt 222,277 286,106 Less current maturities (49,544 ) (57,776 ) Long-term debt—net of current maturities $ 172,733 $ 228,330
Schedule of Maturities of Long-term Debt [Table Text Block]	2022 $ 49,544 2023 47,915 2024 50,534 2025 40,766 2026 21,805 Thereafter 11,713 Total $ 222,277

Note 10 - Segment Information_2

Note 10 - Segment Information, Significant Customers, Industry Concentration and Geographic Areas (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Year Ended December 31, 2021 2020 2019 (in thousands) Amount Percent Amount Percent Amount Percent United States - domestic shipments $ 474,291 67.9 $ 316,542 66.1 $ 326,559 63.5 Shipments to or from Mexico 223,315 32.0 161,412 33.7 186,392 36.3 Shipments to or from Canada 891 0.1 1,156 0.2 1,226 0.2 Total Operating Revenues $ 698,497 100 % $ 479,110 100 % $ 514,177 100 %

Note 12 - Federal and State I_2

Note 12 - Federal and State Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2021 2020 (in thousands) Deferred tax liabilities: Property and equipment $ 84,081 $ 100,736 Unrealized gains on securities 2,580 2,580 Prepaid expenses and other 2,783 2,599 Total deferred tax liabilities 89,444 105,915 Deferred tax assets: Current expected credit losses 1,165 896 Tax credit carryforwards - 988 Compensated absences 185 189 Self-insurance allowances 1,207 674 Marketable equity securities - 2,129 Net operating loss carryover - 32,031 Other 172 125 Total deferred tax assets 2,729 37,032 Net deferred tax liability $ 86,715 $ 68,883
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2021 2020 2019 (in thousands) Amount Percent Amount Percent Amount Percent Federal income tax at statutory rate $ 21,526 21.0 $ 4,916 21.0 $ 2,124 21.0 Nondeductible per diem and meals - - 321 1.4 - - Other nondeductible expenses, net - - - - 342 3.4 State income taxes/other, net 4,463 4.4 345 1.5 (251 ) (2.5 ) Total income tax expense $ 25,989 25.4 $ 5,582 23.9 $ 2,215 21.9
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	2021 2020 2019 (in thousands) Current: Federal $ 6,314 $ (62 ) $ (56 ) State 1,843 282 646 Total current income tax provision 8,157 220 590 Deferred: Federal 13,720 4,860 2,177 State 4,112 502 (552 ) Total deferred income tax provision 17,832 5,362 1,625 Total income tax provision expense 25,989 $ 5,582 $ 2,215

Note 13 - Stock-based Compens_2

Note 13 - Stock-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	2022 $ 408,000 2023 $ 343,000 2024 $ 334,000 2025 $ 363,000 2026 $ 288,000 2027 $ 111,000
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]	Restricted Stock Number of Shares Weighted- Average Grant Date Fair Value Nonvested—January 1, 2021 122,070 $ 18.06 Granted 7,608 30.40 Canceled/forfeited/expired (714 ) 28.23 Vested (9,358 ) 21.71 Nonvested—December 31, 2021: 119,606 $ 18.5

Note 14 - Earnings Per Share (T

Note 14 - Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Year Ended December 31, 2021 2020 2019 (in thousands, except per share data) Net income $ 76,516 $ 17,827 $ 7,900 Basic weighted average common shares outstanding (1) 11,357 11,504 11,663 Dilutive effect of common stock equivalents 75 32 97 Diluted weighted average common shares outstanding (1) 11,432 11,536 11,760 Basic earnings per share $ 6.74 $ 1.55 $ 0.68 Diluted earnings per share $ 6.69 $ 1.55 $ 0.67

Note 17 - Leases (Tables)

Note 17 - Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	(in thousands) Maturity of Lease Liabilities 2022 $ 544 2023 340 2024 114 2025 - 2026 and Thereafter - Total undiscounted operating lease payments $ 998 Less: Imputed interest (35 ) Present value of operating lease liabilities $ 963 Balance Sheet Classification Right-of-use assets (recorded in other non-current assets) $ 963 Current lease liabilities (recorded in other current liabilities) $ 543 Long-term lease liabilities (recorded in other long-term liabilities) 420 Total operating lease liabilities $ 963 Other Information Weighted-average remaining lease term for operating leases 1.98 years Weighted-average discount rate for operating leases 3.65 %
Lease, Cost [Table Text Block]	Twelve Months Ended December 31, 2021 2020 (in thousands) Right-of-Use leases $ 583 $ 552 Short-term leases (1) 2,173 2,177 Total $ 2,756 $ 2,729
Operating Lease, Lease Income [Table Text Block]	Twelve Months Ended December 31, 2021 2020 Leased truck revenue (recorded in revenue, before fuel surcharge) $ 7,747 $ 6,756 Leased building space revenue (recorded in non-operating income) 735 573 Total lease revenue $ 8,482 $ 7,329
Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block]	2022 $ 8,032 2023 5,203 2024 2,598 2025 74 2026 - Thereafter - Total future minimum lease payments receivable $ 15,907

Note 18 - Fair Value of Finan_2

Note 18 - Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2021
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	2021 2020 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Marketable equity securities $ 39,424 $ 39,424 - - $ 27,941 $ 27,941 - -
Fair Value, by Balance Sheet Grouping [Table Text Block]	2021 2020 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value (in thousands) Long-term debt $ 222,277 $ 224,191 $ 267,860 $ 268,582

Note 1 - Accounting Policies (D

Note 1 - Accounting Policies (Details Textual)	Mar. 08, 2022$ / sharesshares	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Bank Overdrafts		$ 0	$ 7,638,000
Due from Employees, Current		43,000	136,000
Other Receivables, Net, Current, Total		7,092,000	5,127,000
Impairment, Long-Lived Asset, Held-for-Use, Total		0	$ 0
Period for Amortizing Prepaid Tires (Month)			24 months
Advertising Expense		$ 1,154,000	$ 1,102,000	$ 1,269,000
Subsequent Event [Member]
Treasury Stock, Shares, Retired (in shares) | shares	12,268,395
Stockholders' Equity Note, Stock Split, Conversion Ratio	2
Common Stock, Dividends, Per Share, Declared (in dollars per share) | $ / shares	$ 1
Truckload Services [Member] | Sales [Member] | Product Concentration Risk [Member]
Concentration Risk, Percentage		67.00%	76.90%	82.70%
Independent Contractors [Member]
Other Receivables, Net, Current, Total		$ 1,037,000	$ 614,000

Note 1 - Accounting Policies -

Note 1 - Accounting Policies - Useful Lives of Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2021
Vehicles [Member] | Minimum [Member]
Property and equipment (Year)	3 years
Vehicles [Member] | Maximum [Member]
Property and equipment (Year)	5 years
Furniture and Fixtures [Member] | Minimum [Member]
Property and equipment (Year)	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property and equipment (Year)	10 years
Machinery and Equipment [Member] | Minimum [Member]
Property and equipment (Year)	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property and equipment (Year)	10 years
Building and Building Improvements [Member] | Minimum [Member]
Property and equipment (Year)	5 years
Building and Building Improvements [Member] | Maximum [Member]
Property and equipment (Year)	40 years

Note 3 - Trade Accounts Recei_3

Note 3 - Trade Accounts Receivable - Accounts Receivable Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Billed	$ 105,992	$ 68,584
Unbilled	20,388	12,629
Current estimated credit losses	(4,526)	(3,482)	$ (2,952)	$ (2,224)
Total accounts receivable—net	$ 121,854	$ 77,731

Note 3 - Trade Accounts Recei_4

Note 3 - Trade Accounts Receivable - Changes in Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance—beginning of year	$ 3,482	$ 2,952	$ 2,224
Provision for bad debts	1,044	530	728
Charge-offs	0	0	0
Recoveries	0	0	0
Balance—end of year	$ 4,526	$ 3,482	$ 2,952

Note 4 - Marketable Equity Se_3

Note 4 - Marketable Equity Securities (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investment Income, Dividend	$ 1,448,000	$ 1,266,000	$ 1,309,000
Equity Securities, FV-NI, Total	7,373,000	10,221,000
Equity Securities, FV-NI, Unrealized Loss	$ 2,419,000	$ 4,967,000
Margin Account Borrowings [Member]
Debt, Weighted Average Interest Rate	0.68%	0.75%
Margin Account Borrowings [Member] | Accrued Expenses and Other Liabilities [Member]
Short-term Debt, Total	$ 1,214,000	$ 11,251,000

Note 4 - Marketable Equity Se_4

Note 4 - Marketable Equity Securities - Securities Classified As Available-for-sale (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair market value	$ 39,424	$ 27,941
Cost	29,385	25,860
Unrealized gain	$ 10,039	$ 2,081

Note 4 - Marketable Equity Se_5

Note 4 - Marketable Equity Securities - Unrealized Gains and Losses on Marketable Equity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Gross unrealized gains	$ 12,458	$ 7,048
Gross unrealized losses	2,419	4,967
Unrealized gain	$ 10,039	$ 2,081

Note 4 - Marketable Equity Se_6

Note 4 - Marketable Equity Securities - Realized Gains on Marketable Equity Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Sale proceeds	$ 3,109	$ 2,039	$ 2,984
Cost of securities sold	3,199	2,216	1,929
Realized (losses) / gains	$ (90)	$ (177)	$ 1,055

Note 5 - Accrued Expenses and_3

Note 5 - Accrued Expenses and Other Liabilities (Details Textual) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Accounts Payable, Current, Total	$ 43,381,000	$ 46,102,000
Revenue Equipment [Member]
Accounts Payable, Current, Total	$ 383,000

Note 5 - Accrued Expenses and_4

Note 5 - Accrued Expenses and Other Liabilities - Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Payroll	$ 1,529	$ 1,621
Accrued vacation	877	835
Taxes—other than income	2,674	6,881
Interest	196	301
Driver escrows	1,643	1,782
Margin account borrowings	1,214	11,251
Self-insurance claims and legal reserves	5,437	3,303
Total accrued expenses and other liabilities	14,114	26,601
Accrued Expenses and Other Liabilities [Member]
Current lease liabilities (recorded in other current liabilities)	$ 544	$ 627

Note 6 - Claims Liabilities (De

Note 6 - Claims Liabilities (Details Textual) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	Sep. 01, 2020	Sep. 01, 2019
Self Insurance Auto Liability Claims Threshold Amount			$ 2,000,000	$ 1,000,000
Workers Compensation Self Insured Retention	$ 500,000
Workers Compensation Per Occurrence Excess Policy	500,000
Letters of Credit Outstanding, Amount	310,000	$ 310,000
Stop Loss for Self Insurance for Employee Health Claims Per Covered Employee Per Year	400,000
Cargo Loss Coverage [Member]
Per Occurrence Deductibles		10,000
Auto Liability Coverage [Member]
Self Insurance Auto Liability Claims Threshold Amount	2,000,000	$ 1,000,000
Workers Compensation Coverage [Member]
Letters of Credit Outstanding, Amount	300,000
Certificates of Deposit, at Carrying Value	$ 300,000

Note 7 - Long-term Debt (Detail

Note 7 - Long-term Debt (Details Textual)	12 Months Ended
	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Letters of Credit Outstanding, Amount	$ 310,000	$ 310,000
Texas Real Estate Agreement [Member]
Debt Instrument, Number of Installment Payments	120
Debt Instrument, Interest Rate, Stated Percentage	3.02%
Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 60,000,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Average Daily Borrowings Amount Unused Fee Trigger	$ 18,000,000
Ratio of Indebtedness to Net Capital	4
Line of Credit Facility, Outstanding Advances	$ 400,000	18,600,000
Letters of Credit Outstanding, Amount	300,000	$ 300,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 59,600,000
Line of Credit [Member] | Equipment Financing [Member]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	2.81%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.25%
Line of Credit Facility, Interest Rate at Period End	1.75%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.50%

Note 7 - Long-term Debt - Summa

Note 7 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Long-term debt		$ 222,277	$ 286,106
Less current maturities		(49,544)	(57,776)
Long-term debt—net of current maturities		172,733	228,330
Line of Credit [Member]
Long-term debt	[1]	0	18,246
Secured Debt [Member]
Long-term debt	[2]	206,539	250,572
Texas Real Estate Agreement [Member]
Long-term debt	[3]	$ 15,738
Real Estate Financing [Member]
Long-term debt	[3]		$ 17,288
[1]	Line of credit agreement with a bank provides for maximum borrowings of $60.0 million and contains certain restrictive covenants that must be maintained by the Company on a consolidated basis. Borrowings on the line of credit are at an interest rate of LIBOR as of the first day of the month (with a floor of 0.5%) plus 1.25%, (1.75% at December 31, 2021) and are secured by our trade accounts receivable. An “unused fee” of 0.25% is charged if average daily borrowings are less than $18.0 million in a given month. Monthly payments of interest are required under this agreement. Also, under the terms of the agreement the Company must maintain a debt to adjusted EBITDA (earnings before interest, taxes, depreciation, and amortization, excluding gains/losses on equity securities and extraordinary items) ratio of less than 4.00:1. The Company was in compliance with all provisions under this agreement throughout 2021. At December 31, 2021, outstanding advances on the line were approximately $0.4 million, including letters of credit totaling $0.3 million, with availability to borrow $59.6 million. At December 31, 2020, outstanding advances on the line were approximately $18.6 million, including letters of credit totaling $0.3 million.
[2]	Equipment financings consist of installment obligations for revenue equipment purchases, payable in various monthly installments with various maturity dates through March 2028, at a weighted average interest rate of 2.81% as of December 31, 2021 and collateralized by revenue equipment.
[3]	Real estate financing consisting of an installment obligation for the purchase of real estate in Laredo, TX, payable in 120 installments at an interest rate of 3.02% and maturing in August 2030. This obligation is collateralized by the underlying real estate and any rental income generated by the underlying real estate.

Note 7 - Long-term Debt - Annua

Note 7 - Long-term Debt - Annual Maturities on Long-term Debt Outstanding (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
2022	$ 49,544
2023	47,915
2024	50,534
2025	40,766
2026	21,805
Thereafter	11,713
Total	$ 222,277	$ 286,106

Note 8 - Noncash Investing an_2

Note 8 - Noncash Investing and Financing Activities (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Noncash or Part Noncash Acquisition, Fixed Assets Acquired	$ 36.1	$ 80.7

Note 9 - Capital Stock (Details

Note 9 - Capital Stock (Details Textual)	Aug. 26, 2021USD ($)$ / sharesshares	Aug. 16, 2021	Jul. 27, 2021$ / shares	Jun. 13, 2019USD ($)$ / sharesshares	May 13, 2019$ / sharesshares	Dec. 31, 2021USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)	Nov. 30, 2021shares	Jul. 31, 2021shares
Common Stock, Shares Authorized (in shares)						40,000,000	40,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares						$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)						10,000,000	10,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares						$ 0.01	$ 0.01
Common Stock, Shares, Issued, Total (in shares)						23,400,796	23,391,438
Common Stock, Shares, Outstanding, Ending Balance (in shares)						11,174,011	11,455,790
Preferred Stock, Shares Issued, Total (in shares)						0	0
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)										200,000
Treasury Stock, Value, Acquired, Cost Method | $						$ 10,828,000	$ 2,281,000	$ 14,285,000
Treasury Stock, Shares, Ending Balance (in shares)						12,226,785	11,935,648
Treasury Stock, Value, Ending Balance | $						$ 169,946,199	$ 159,118,000
The 2019 Tender Offer [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)					200,000
Stock Repurchase Program Additional Shares Authroized To Be Repurchased Percent Of Outstanding Shares Percent					2.00%
Treasury Stock, Shares, Acquired (in shares)	272,405			192,743
Treasury Stock Acquired, Average Cost Per Share (in dollars per share) | $ / shares	$ 37			$ 60
Treasury Stock, Value, Acquired, Cost Method | $	$ 10,100,000			$ 11,600,000
Stock Repurchase Program Additional Shares Authorized To Be Repurchased Percent Of Outstanding Shares, Shares (in shares)					118,996
The 2019 Tender Offer [Member] | Minimum [Member]
Stock Repurchase Program Additional Shares Authroized To Be Repurchased Percent Of Outstanding Shares Percent			2.00%
Treasury Stock Acquired Cost Per Share (in dollars per share) | $ / shares			$ 32		$ 55
The 2019 Tender Offer [Member] | Maximum [Member]
Treasury Stock Acquired Cost Per Share (in dollars per share) | $ / shares			$ 37		$ 60
September 2011 Reauthorization [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)									500,000
Treasury Stock, Shares, Acquired (in shares)						18,732	60,561
Stock Split To [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio		2

Note 10 - Segment Information_3

Note 10 - Segment Information, Significant Customers, Industry Concentration and Geographic Areas (Details Textual) - Customer Concentration Risk [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Sales [Member] | Five Largest Customers [Member]
Concentration Risk, Percentage	33.00%	35.00%	40.00%
Sales [Member] | General Motors Company [Member]
Concentration Risk, Percentage	11.00%	15.00%	19.00%
Revenue Provided to the Automobile Manufacturing Industry [Member] | Other Manufacturers [Member]
Concentration Risk, Percentage	27.00%	30.00%	40.00%
Accounts Receivable [Member]
Accounts Receivable, before Allowance for Credit Loss, Current	$ 31,049,000	$ 25,593,000

Note 10 - Segment Information_4

Note 10 - Segment Information, Significant Customers, Industry Concentration, and Geographic Areas - Revenue Dollars and Percentages by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating revenues	$ 707,120	$ 486,825	$ 514,177
Motor Carrier [Member]
Operating revenues	$ 698,497	$ 479,110	$ 514,177
Motor Carrier [Member] | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Operating Revenues, percentage	100.00%	100.00%	100.00%
Motor Carrier [Member] | UNITED STATES
Operating revenues	$ 474,291	$ 316,542	$ 326,559
Motor Carrier [Member] | UNITED STATES | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Operating Revenues, percentage	67.90%	66.10%	63.50%
Motor Carrier [Member] | MEXICO
Operating revenues	$ 223,315	$ 161,412	$ 186,392
Motor Carrier [Member] | MEXICO | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Operating Revenues, percentage	32.00%	33.70%	36.30%
Motor Carrier [Member] | CANADA
Operating revenues	$ 891	$ 1,156	$ 1,226
Motor Carrier [Member] | CANADA | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Operating Revenues, percentage	0.10%	0.20%	0.20%

Note 12 - Federal and State I_3

Note 12 - Federal and State Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Examination, Penalties and Interest Expense, Total	$ 0	$ 0
Statute of Limitations (Year)	3 years
Open Tax Year	2018 2019 2020 2021

Note 12 - Federal and State I_4

Note 12 - Federal and State Income Taxes - Significant Components of Deferred Tax Liabilities and Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax liabilities:
Property and equipment	$ 84,081	$ 100,736
Unrealized gains on securities	2,580	2,580
Prepaid expenses and other	2,783	2,599
Total deferred tax liabilities	89,444	105,915
Deferred tax assets:
Current expected credit losses	1,165	896
Tax credit carryforwards	0	988
Compensated absences	185	189
Self-insurance allowances	1,207	674
Marketable equity securities	0	2,129
Net operating loss carryover	0	32,031
Other	172	125
Total deferred tax assets	2,729	37,032
Net deferred tax liability	$ 86,715	$ 68,883

Note 12 - Federal and State I_5

Note 12 - Federal and State Income Taxes - Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Federal income tax at statutory rate, amount	$ 21,526	$ 4,916	$ 2,124
Federal income tax at statutory rate, percent	21.00%	21.00%	21.00%
Nondeductible per diem and meals, amount	$ 0	$ 321	$ 0
Nondeductible per diem and meals, percent	0.00%	1.40%	0.00%
Other nondeductible expenses, net, amount	$ 0	$ 0	$ 342
Other nondeductible expenses, net, percent	0.00%	0.00%	3.40%
State income taxes/other, net, amount	$ 4,463	$ 345	$ (251)
State income taxes/other, net, percent	4.40%	1.50%	(2.50%)
Total federal & state income tax expense	$ 25,989	$ 5,582	$ 2,215
Total income tax (benefit) expense, percent	25.40%	23.90%	21.90%

Note 12 - Federal and State I_6

Note 12 - Federal and State Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current:
Federal	$ 6,314	$ (62)	$ (56)
State	1,843	282	646
Total current income tax provision	8,157	220	590
Deferred:
Federal	13,720	4,860	2,177
State	4,112	502	(552)
Total deferred income tax provision	17,832	5,362	1,625
Total income tax provision expense	$ 25,989	$ 5,582	$ 2,215

Note 13 - Stock-based Compens_3

Note 13 - Stock-based Compensation (Details Textual)	Aug. 16, 2021	May 29, 2014shares	Apr. 30, 2021USD ($)$ / shares	Mar. 31, 2021$ / sharesshares	Aug. 31, 2020USD ($)$ / sharesshares	Apr. 30, 2020$ / sharesshares	Mar. 31, 2020$ / sharesshares	Jan. 31, 2020$ / sharesshares	May 31, 2019$ / sharesshares	Apr. 30, 2019$ / sharesshares	Jun. 30, 2020shares	Mar. 31, 2020shares	Mar. 31, 2019shares	Sep. 30, 2021USD ($)shares	Dec. 31, 2021USD ($)$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) | shares															0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value | $															$ 203,000	$ 759,000	$ 953,000
Share-based Payment Arrangement, Expense | $															441,000	461,000	912,000
Share-based Payment Arrangement, Expense, Tax Benefit | $															$ 110,000	$ 100,000	$ 200,000
Allocated Share-based Compensation Expense, Impact on Earnings Per Share, Diluted (in dollars per share) | $ / shares															$ 0.03	$ 0.06	$ 0.12
Allocated Share-based Compensation Expense, Impact on Earnings Per Share, Basic (in dollars per share) | $ / shares															$ 0.02
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total | $															$ 1,847,000
Director [Member] | Salaries, Wages and Benefits [Member]
Share-based Payment Arrangement, Expense | $														$ 80,000		$ 90,000	$ 100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Grants in Period (in shares) | shares													410	326
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | shares															7,608
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares															$ 30.40
Stock Award [Member] | Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | shares						484
Accrual Shares to Each Non-employee Director [Member] | Nine Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Grants in Period (in shares) | shares											484	652
Stock Split To [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	2
The 2014 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) | shares		1,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) | shares															0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares) | shares															0	0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares) | shares															716,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | shares				2,608			5,216		426	3,690
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares				$ 30.85		$ 20.70	$ 15.38		$ 23.53	$ 24.47
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | shares					26,664			14,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares			$ 30.17		$ 15.13			$ 28.23
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares | $			$ 5,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			4 years		4 years			4 years
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | shares					80,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares					$ 17.69
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | The 2024 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares | $					$ 10,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | The 2025 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares | $					20,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | The 2022 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares | $					10,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | The 2023 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares | $					10,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | The 2027 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares | $					10,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | The 2026 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares | $					$ 20,000
The 2014 Stock Option Plan [Member] | Minimum [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent		85.00%

Note 13 - Stock-based Compens_4

Note 13 - Stock-based Compensation - Share based Compensation (Details) - Restricted Stock [Member]	Dec. 31, 2021USD ($)
2021	$ 408,000
2022	343,000
2023	334,000
2024	363,000
2025	288,000
2026	$ 111,000

Note 13 - Stock Based Compensat

Note 13 - Stock Based Compensation - Summary of Nonvested Restricted Stock (Details) - Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2021$ / sharesshares
Non-vested (in shares) | shares	122,070
Nonvested - weighted average grant date fair value (in dollars per share) | $ / shares	$ 18.06
Granted (in shares) | shares	7,608
Granted - weighted average grant date fair value (in dollars per share) | $ / shares	$ 30.40
Canceled/forfeited/expired (in shares) | shares	(714)
Canceled/forfeited/expired - weighted average grant date fair value (in dollars per share) | $ / shares	$ 28.23
Vested (in shares) | shares	(9,358)
Vested - weighted average grant date fair value (in dollars per share) | $ / shares	$ 21.71
Non-vested (in shares) | shares	119,606
Nonvested - weighted average grant date fair value (in dollars per share) | $ / shares	$ 18.5

Note 14 - Earnings Per Share (D

Note 14 - Earnings Per Share (Details Textual)	Aug. 16, 2021
Stock Split To [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	2

Note 14 - Earnings Per Share -

Note 14 - Earnings Per Share - Computations of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 76,516	$ 17,827	$ 7,900
Basic (in shares)	11,357	11,504	11,663
Dilutive effect of common stock equivalents (in shares)	75	32	97
Diluted weighted average common shares outstanding(1) (in shares)	11,432	11,536	11,760
Basic (in dollars per share)	$ 6.74	$ 1.55	$ 0.68
Diluted (in dollars per share)	$ 6.69	$ 1.55	$ 0.67

Note 15 - Benefit Plan (Details

Note 15 - Benefit Plan (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	3.00%
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	20.00%
Defined Contribution, Fully Vested Period (Year)	5 years
Defined Contribution Plan, Cost	$ 190,000	$ 190,000	$ 198,000

Note 16 - Commitments and Con_2

Note 16 - Commitments and Contingencies (Details Textual) - USD ($)	Mar. 31, 2020	Dec. 31, 2021	Sep. 01, 2020	Jul. 31, 2020	Sep. 01, 2019
Self Insurance Auto Liability Claims Threshold Amount			$ 2,000,000		$ 1,000,000
Self Insurance Auto Liability Claims Threshold Amount			$ 2,000,000		$ 1,000,000
Minimum [Member]
Self Insurance Liability Claims, Exceeding Amount Reserve Threshold		$ 2,000,000
Settlement Of Collective And Class Action Lawsuit [Member]
Loss Contingency Accrual, Ending Balance				$ 16,500,000
Litigation Settlement, Amount Awarded to Other Party	$ 421,000

Note 17 - Leases (Details Textu

Note 17 - Leases (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0
Operating Lease, Payments	600,000	$ 600,000
Property, Plant and Equipment, Gross, Ending Balance	585,303,000	653,676,000
Property, Plant and Equipment, Net, Ending Balance	384,179,000	450,825,000
Lessor, Operating Lease, Payments to be Received, Total	15,907,000
Depreciation, Total	55,012,000	56,168,000	$ 55,107,000
Majority Shareholder [Member]
Lessor, Operating Lease, Payments to be Received, Total	12,100
Trucks under Operating Lease [Member]
Property, Plant and Equipment, Gross, Ending Balance	55,986,000	49,228,000
Property, Plant and Equipment, Net, Ending Balance	28,951,000	24,708,000
Lessor, Operating Lease, Payments to be Received, Total	15,907,000	15,242,000
Depreciation, Total	6,600,000
Shop and Office Space [Member] | Majority Shareholder [Member]
Operating Lease, Payments	1,405,229
Property, Plant and Equipment, Gross, Ending Balance	13,738,000
Property, Plant and Equipment, Net, Ending Balance	12,042,000
Lessor, Operating Lease, Payments to be Received, Total	173,000
Property, Plant, and Equipment, Lessor Asset under Operating Lease, before Accumulated Depreciation	13,738,000
Property, Plant, and Equipment, Lessor Asset under Operating Lease, after Accumulated Depreciation, Total		$ 12,042,000
Shop and Office Space [Member]
Operating Lease, Liability, Total	$ 217,000
Trucks under Operating Lease [Member]
Lessor, Operating Lease, Term of Contract (Year)	5 years
Maximum [Member] | Trucks [Member]
Lessor, Operating Lease, Term of Contract (Year)	60 years
Maximum [Member] | Shop and Office Leases with Early Cancellation Options [Member]
Lessee, Operating Lease, Term of Contract (Year)	5 years
Maximum [Member] | Leases without Early Cancellation Options [Member]
Operating Lease, Right-of-Use Asset	$ 1,000,000

Note 17 - Leases - Operating Le

Note 17 - Leases - Operating Lease (Details) $ in Thousands	Dec. 31, 2021USD ($)
2022	$ 544
2023	340
2024	114
2025	0
2026 and Thereafter	0
Total undiscounted operating lease payments	998
Less: Imputed interest	$ (35)
Weighted-average remaining lease term for operating leases (Year)	1 year 11 months 23 days
Weighted-average discount rate for operating leases	3.65%
Accrued Expenses And Other Liabilities And Other Long-term Liabilities [Member]
Present value of operating lease liabilities	$ 963
Right-of-use assets (recorded in other non-current assets)	963
Total operating lease liabilities	963
Other Current Liabilities [Member]
Current lease liabilities (recorded in other current liabilities)	543
Other Noncurrent Liabilities [Member]
Long-term lease liabilities (recorded in other long-term liabilities)	$ 420

Note 17 - Leases - Lease Cost (

Note 17 - Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Right-of-Use leases	$ 583	$ 552
Short-term leases (1)	2,173	2,177
Total	$ 2,756	$ 2,729

Note 17 - Leases - Lease Revenu

Note 17 - Leases - Lease Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lease revenue	$ 8,482	$ 7,329
Trucks under Operating Lease [Member]
Lease revenue	7,747	6,756
Dock Space under Operating Lease [Member]
Lease revenue	$ 735	$ 573

Note 17 - Leases - Lease Receiv

Note 17 - Leases - Lease Receivables (Details) $ in Thousands	Dec. 31, 2021USD ($)
2022	$ 8,032
2023	5,203
2024	2,598
2025	74
2026	0
Thereafter	0
Total future minimum lease payments receivable	$ 15,907

Note 18 - Fair Value of Finan_3

Note 18 - Fair Value of Financial Instruments - Securities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Marketable equity securities	$ 39,424	$ 27,941
Fair Value, Inputs, Level 1 [Member]
Marketable equity securities	$ 39,424
Fair Value, Inputs, Level 3 [Member]
Marketable equity securities		$ 27,941

Note 18 - Fair Value of Finan_4

Note 18 - Fair Value of Financial Instruments - Fair Value of Long-term Debt Other Than Lines of Credit (Details) - Equipment Financing [Member] - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Reported Value Measurement [Member]
Long-term debt	$ 222,277	$ 267,860
Estimate of Fair Value Measurement [Member]
Long-term debt	$ 224,191	$ 268,582

Note 19 - Related Party Trans_2

Note 19 - Related Party Transactions (Details Textual) - Majority Shareholder [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from Related Parties	$ 8,085,000	$ 9,897,000	$ 2,691,000
Related Party Transaction, Expenses from Transactions with Related Party	11,103,000	6,791,000	9,190,000
Due from Related Parties, Total	636,000	2,348,000
Due to Related Parties, Total	1,276,000	1,864,000
Freight Transportation [Member]
Accounts Receivable, Related Parties	448,000	2,236,000
Maintenance Performed and Charges Paid to Third Parties on Behalf of Their Affiliate and Charged Back [Member]
Accounts Receivable, Related Parties	188,000	112,000
Auto Liability Coverage [Member]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	9,851,000	8,516,000	10,345,000
Workers Compensation Coverage [Member]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	$ 300,000	$ 299,000	$ 266,000