Pamt (PAMT) 10-K 5 Mar 21 2020 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Feb. 24, 2021	Jun. 30, 2020
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	2020
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
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	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 55,474,883
Entity Common Stock, Shares Outstanding		5,724,939

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($)	Dec. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 337,000	$ 318,000
Accounts receivable—net:
Trade, less current estimated credit loss of $3,482 and $2,952, respectively	77,731,000	61,784,000
Other	5,127,000	3,769,000
Inventories	1,345,000	1,327,000
Prepaid expenses and deposits	10,172,000	8,669,000
Marketable equity securities	27,941,000	29,521,000
Income taxes refundable	868,000	504,000
Total current assets	123,521,000	105,892,000
PROPERTY AND EQUIPMENT:
Land	18,486,000	7,246,000
Structures and improvements	32,275,000	20,204,000
Revenue equipment	592,476,000	524,527,000
Office furniture and equipment	10,439,000	11,185,000
Total property and equipment	653,676,000	563,162,000
Accumulated depreciation	(202,851,000)	(175,887,000)
Net property and equipment	450,825,000	387,275,000
OTHER ASSETS	4,246,000	4,842,000
TOTAL ASSETS	578,592,000	498,009,000
CURRENT LIABILITIES:
Accounts payable	46,102,000	16,597,000
Accrued expenses and other liabilities	26,601,000	40,610,000
Current maturities of long-term debt	57,776,000	67,637,000
Total current liabilities	130,479,000	124,845,000
Long-term debt—less current portion	228,330,000	174,187,000
Deferred income taxes	68,883,000	63,522,000
Other long-term liabilities	919,000	1,481,000
Total liabilities	428,611,000	364,034,000
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; 11,695,719 and 11,656,160 shares issued; 5,727,895 and 5,748,897 shares outstanding at December 31, 2020 and 2019, respectively	117,000	117,000
Additional paid-in capital	84,148,000	83,688,000
Accumulated Other Comprehensive Income	0	0
Treasury stock, at cost; 5,967,824 and 5,907,263 shares at December 31, 2020 and 2019, respectively	(159,118,275)	(156,837,000)
Retained earnings	224,834,000	207,007,000
Total stockholders’ equity	149,981,000	133,975,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 578,592,000	$ 498,009,000

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Trade, allowance	$ 3,482	$ 2,952	$ 2,224	$ 1,335
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)	11,695,719	11,656,160
Common stock, outstanding (in shares)	5,727,895	5,748,897
Treasury stock (in shares)	5,967,824	5,907,263

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
OPERATING REVENUES:
Operating revenues	$ 486,825	$ 514,177	$ 533,261
OPERATING EXPENSES AND COSTS:
Salaries, wages and benefits	124,098	129,738	119,819
Operating supplies and expenses	84,275	98,420	93,130
Rents and purchased transportation	165,984	168,399	201,455
Depreciation	56,168	55,107	49,387
Insurance and claims	8,866	35,622	17,191
Other	13,138	13,761	11,983
Loss (gain) on disposition of equipment	373	583	(1,306)
Total operating expenses and costs	452,902	501,630	491,659
OPERATING INCOME	33,923	12,547	41,602
NON-OPERATING (EXPENSE) INCOME	(1,699)	6,222	(4,016)
INTEREST EXPENSE	(8,815)	(8,654)	(6,245)
INCOME BEFORE INCOME TAXES	23,409	10,115	31,341
FEDERAL & STATE INCOME TAX EXPENSE:
Current	220	590	141
Deferred	5,362	1,625	7,206
Total federal & state income tax expense	5,582	2,215	7,347
NET INCOME	$ 17,827	$ 7,900	$ 23,994
EARNINGS PER COMMON SHARE:
Basic (in dollars per share)	$ 3.10	$ 1.35	$ 3.94
Diluted (in dollars per share)	$ 3.09	$ 1.34	$ 3.90
AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	5,752	5,832	6,083
Diluted (in shares)	5,768	5,880	6,159
Freight Transportation Service [Member]
OPERATING REVENUES:
Operating revenues	$ 438,987	$ 439,511	$ 445,855
Fuel Surcharge [Member]
OPERATING REVENUES:
Operating revenues	$ 47,838	$ 74,666	$ 87,406

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net income		$ 17,827	$ 7,900	$ 23,994
Other comprehensive income, net of tax:
Other comprehensive income (1)	[1]	0	0	0
COMPREHENSIVE INCOME		$ 17,827	$ 7,900	$ 23,994
[1]	Other comprehensive income for 2020, 2019 and 2018 was $0, $0, and $0, respectively.

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member]AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Retained Earnings [Member]	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2017			6,161,000
Balance at Dec. 31, 2017	$ (7,444)	$ 7,444		$ 115	$ 81,559	$ 7,444	$ (129,183)	$ 167,669	$ 127,604
Net income								23,994	$ 23,994
Exercise of stock options-shares issued including tax benefits (in shares)			45,000						45,005
Exercise of stock options-shares issued including tax benefits				1	485				$ 486
Restricted stock issued (in shares)			38,000
Treasury stock repurchases (in shares)			(287,000)
Treasury stock repurchases							(13,369)		(13,369)
Share-based compensation					732				732
Net income								23,994	23,994
Treasury stock repurchases (in shares)			287,000
Balance (in shares) at Dec. 31, 2018			5,957,000
Balance at Dec. 31, 2018				116	82,776	0	(142,552)	199,107	139,447
Net income								7,900	$ 7,900
Exercise of stock options-shares issued including tax benefits (in shares)									0
Restricted stock issued (in shares)			44,000
Treasury stock repurchases (in shares)			252,000
Treasury stock repurchases							(14,285)		$ (14,285)
Share-based compensation					912				912
Net income								7,900	7,900
Restricted stock issued				1					1
Treasury stock repurchases (in shares)			(252,000)
Balance (in shares) at Dec. 31, 2019			5,749,000
Balance at Dec. 31, 2019				117	83,688	0	(156,837)	207,007	133,975
Net income								17,827	$ 17,827
Exercise of stock options-shares issued including tax benefits (in shares)									0
Restricted stock issued (in shares)			40,000
Treasury stock repurchases (in shares)			(61,000)
Treasury stock repurchases							(2,281)		$ (2,281)
Share-based compensation					460				460
Net income								17,827	17,827
Treasury stock repurchases (in shares)			61,000
Balance (in shares) at Dec. 31, 2020			5,728,000
Balance at Dec. 31, 2020				$ 117	$ 84,148	$ 0	$ (159,118)	$ 224,834	$ 149,981

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
OPERATING ACTIVITIES:
Net income	$ 17,827,000	$ 7,900,000	$ 23,994,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	56,168,000	55,107,000	49,387,000
Bad debt expense	530,000	728,000	889,000
Stock compensation—net of excess tax benefits	460,000	912,000	732,000
Provision for deferred income taxes	5,362,000	1,625,000	7,206,000
Recognized loss (gain) on marketable equity securities	3,463,000	(4,753,000)	5,388,000
Loss (gain) on sale or disposal of equipment	373,000	583,000	(1,306,000)
Changes in operating assets and liabilities:
Accounts receivable	(17,835,000)	884,000	(5,970,000)
Prepaid expenses, deposits, inventories, and other assets	(1,780,000)	1,865,000	(137,000)
Income taxes refundable	(60,000)	1,372,000	(76,000)
Trade accounts payable	20,880,000	(2,233,000)	1,731,000
Accrued expenses and other liabilities	(17,798,000)	20,307,000	509,000
Net cash provided by operating activities	67,590,000	84,297,000	82,347,000
INVESTING ACTIVITIES:
Purchases of property and equipment	(48,226,000)	(79,354,000)	(73,882,000)
Proceeds from disposition of equipment	17,418,000	14,263,000	24,904,000
Sales of marketable equity securities	2,039,000	2,984,000	1,045,000
Purchases of marketable equity securities, net of return of capital	(3,923,000)	(203,000)	(7,318,000)
Net cash used in investing activities	(32,692,000)	(62,310,000)	(55,251,000)
FINANCING ACTIVITIES:
Borrowings under line of credit	517,668,000	590,902,000	615,612,000
Repayments under line of credit	(516,468,000)	(584,047,000)	(605,419,000)
Borrowings of long-term debt	26,837,000	60,203,000	52,717,000
Repayments of long-term debt	(64,411,000)	(70,917,000)	(82,442,000)
Borrowings under margin account	7,068,000	527,000	7,584,000
Repayments under margin account	(3,292,000)	(4,334,000)	(2,206,000)
Repurchases of treasury stock	(2,281,000)	(14,285,000)	(13,369,000)
Proceeds from exercise of stock options	0	0	485,000
Net cash used in financing activities	(34,879,000)	(21,951,000)	(27,038,000)
NET INCREASE IN CASH AND CASH EQUIVALENTS	19,000	36,000	58,000
CASH AND CASH EQUIVALENTS—Beginning of year	318,000	282,000	224,000
CASH AND CASH EQUIVALENTS—End of year	337,000	318,000	282,000
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION—
Interest	8,798,000	8,612,000	6,095,000
Income taxes	281,000	671,000	217,000
NONCASH INVESTING AND FINANCING ACTIVITIES—
Purchases of revenue equipment included in accounts payable	$ 9,050,000	$ 366,000	$ 1,597,000

Note 1 - Accounting Policies

Note 1 - Accounting Policies	12 Months Ended
	Dec. 31, 2020
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., P.A.M. Logistics Services, 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 not zero not December 31, 2020 2019 Accounts Receivable Other December 31, 2020 2019, December 31, 2020 2019, 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 2020 2019. Property and Equipment Asset Class Estimated Asset Life Service vehicles 3 - 5 Office furniture and equipment 3 - 7 Revenue equipment 3 - 8 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 2020 2019, not Inventory first first Prepaid Tires Advertising Expense December 31, 2020, 2019 2018, 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, 2020 2019, not Revenue Recognition no Earnings Per Share 14 Fair Value Measurements 18 Reporting Segments twelve December 31, 2020, 2019 2018, Concentrations of Credit Risk not Subsequent Events no Risks and Uncertainties (COVID- 19 March 2020, 19” 19 19, not Foreign Currency Transactions Recent Accounting Pronouncements June 2016, No. 2016 13, 2016 13” 326 2016 13 2016 - 13 December 15, 2022 , January 1, 2020 not In March 2020, No. 2020 - 04, 2020 - 04” 848 2020 - 04 2020 - 04 March 12, 2020 December 31, 2022 . not not

Note 2 - Revenue Recognition

Note 2 - Revenue Recognition	12 Months Ended
	Dec. 31, 2020
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, 2020
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, 2020 2019: 2020 2019 (in thousands) Billed $ 68,584 $ 57,495 Unbilled 12,629 7,241 Current estimated credit losses (3,482 ) (2,952 ) Total accounts receivable—net $ 77,731 $ 61,784 An analysis of changes in current estimated credit losses for the years ended December 31, 2020, 2019, 2018 2020 2019 2018 (in thousands) Balance—beginning of year $ 2,952 $ 2,224 $ 1,335 Provision for bad debts 530 728 889 Charge-offs - - - Recoveries - - - Balance—end of year $ 3,482 $ 2,952 $ 2,224

Note 4 - Marketable Equity Secu

Note 4 - Marketable Equity Securities	12 Months Ended
	Dec. 31, 2020
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, 2020 2019. 2020 2019 (in thousands) Available-for-sale securities: Fair market value $ 27,941 $ 29,521 Cost 25,860 24,156 Unrealized gain $ 2,081 $ 5,365 The following table sets forth the gross unrealized gains and losses on the Company’s marketable securities as of December 31, 2020 2019. 2020 2019 (in thousands) Available-for-sale securities: Gross unrealized gains $ 7,048 $ 7,808 Gross unrealized losses 4,967 2,443 Net unrealized gains $ 2,081 $ 5,365 For the years ended December 31, 2020, 2019 2018, The following table shows the Company’s net realized (losses) gains during 2020, 2019 2018 2020 2019 2018 (in thousands) Realized (losses) gains: Sale proceeds $ 2,039 $ 2,984 $ 1,044 Cost of securities sold 2,216 1,929 669 Realized (losses) / gains $ (177 ) $ 1,055 $ 375 Realized (losses) / gains, net of taxes $ (90 ) $ 815 $ 278 At December 31, 2020, December 31, 2019, The market value of the Company’s equity securities are periodically used as collateral against any outstanding margin account borrowings. As of December 31, 2020 2019, December 31, 2020 2019,

Note 5 - Accrued Expenses and O

Note 5 - Accrued Expenses and Other Liabilities	12 Months Ended
	Dec. 31, 2020
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 2020 2019 (in thousands) Payroll $ 1,621 $ 2,226 Accrued vacation 835 2,191 Taxes—other than income 6,881 2,719 Interest 301 284 Driver escrows 1,782 2,211 Margin account borrowings 11,251 7,474 Self-insurance claims 3,303 2,988 Legal reserves - 19,901 Current portion of Right-of-Use asset 627 616 Total accrued expenses and other liabilities $ 26,601 $ 40,610 The Company’s accounts payable of $46,102,000 includes $9,050,000 in payables for purchases of revenue equipment.

Note 6 - Claims Liabilities

Note 6 - Claims Liabilities	12 Months Ended
	Dec. 31, 2020
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. On 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, 2020
Notes to Financial Statements
Long-term Debt [Text Block]	7. LONG-TERM DEBT Long-term debt at December 31, 2020 2019 (in thousands) Line of credit with a bank—due July 1, 2022, and collateralized by accounts receivable (1) 18,246 17,047 Equipment financing (2) 250,572 224,777 Real estate financing (3) 17,288 - Total long-term debt 286,106 241,824 Less current maturities (57,776 ) (67,637 ) Long-term debt—net of current maturities $ 228,330 $ 174,187 ( 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, 2020 4.00:1. 2020. December 31, 2020, December 31, 2019, ( 2 Equipment financings consist of installment obligations for revenue equipment purchases, payable in various monthly installments with various maturity dates through September 2026, December 31, 2020 ( 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, 2020 December 31, 2019, third Scheduled annual maturities on long-term debt outstanding at December 31, 2020, 2021 $ 57,776 2022 72,681 2023 66,767 2024 43,116 2025 30,596 2026 7,921 Thereafter 7,249 Total $ 286,106

Note 8 - Noncash Investing and

Note 8 - Noncash Investing and Financing Activities	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Noncash Investing and Financing Activities Disclosure [Text Block]	8. NONCASH INVESTING AND FINANCING ACTIVITIES The Company financed approximately $80.7 million and $24.5 million in equipment purchases during 2020 2019,

Note 9 - Capital Stock

Note 9 - Capital Stock	12 Months Ended
	Dec. 31, 2020
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, 2020, December 31, 2019, December 31, 2020 2019. Common Stock The holders of our common stock, subject to such rights as may one no Preferred Stock Preferred stock may may December 31, 2020, no Treasury Stock In May 2019, “2019 2019 May 13, 2019 June 11, 2019. June 13, 2019. December 31, 2019. In May 2018, “2018 2018 May 8, 2018 June 7, 2018. June 12, 2018. December 31, 2018. The Company’s stock repurchase program has been extended and expanded several times, most recently in April 2017, September 2011 2020 2019, The Company accounts for Treasury stock using the cost method, and as of December 31, 2020,

Note 10 - Segment Information,

Note 10 - Segment Information, Significant Customers, Industry Concentration and Geographic Areas Dividends	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Segment Reporting and Concentration Risk Disclosure [Text Block]	10. SEGMENT INFORMATION, SIGNIFICANT CUSTOMERS, INDUSTRY CONCENTRATION AND GEOGRAPHIC AREAS DIVIDENDS The Company's revenues for 2020, 2019 2018 The table below presents revenue dollars and percentages by geographic area: Year Ended December 31, 2020 2019 2018 (in thousands) Amount Percent Amount Percent Amount Percent United States - domestic shipments $ 316,542 66.1 $ 326,559 63.5 $ 302,754 56.8 Shipments to or from Mexico 161,412 33.7 186,392 36.3 229,350 43.0 Shipments to or from Canada 1,156 0.2 1,226 0.2 1,157 0.2 Total Operating Revenues $ 479,110 100 % $ 514,177 100 % $ 533,261 100 % Our five 2020, 2019 2018, 2020, 2019 2018, 2020, 2019 2018, 2020, 2019 2018, We also provide transportation services to other manufacturers who are suppliers for automobile manufacturers. Approximately 30%, 40% and 46% of our revenues were derived from transportation services provided to the automobile industry during 2020, 2019 2018, Accounts receivable from the three December 31, 2020 2019,

Note 11 - Dividends

Note 11 - Dividends	12 Months Ended
	Dec. 31, 2020
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, 2020
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 2020 2019 (in thousands) Deferred tax liabilities: Property and equipment $ 100,736 $ 83,453 Unrealized gains on securities 2,580 2,580 Prepaid expenses and other 2,599 2,193 Total deferred tax liabilities 105,915 88,226 Deferred tax assets: Current expected credit losses 896 760 Tax credit carryforwards 988 988 Compensated absences 189 512 Self-insurance allowances 674 5,630 Marketable equity securities 2,129 1,253 Net operating loss carryover 32,031 15,364 Other 125 197 Total deferred tax assets 37,032 24,704 Net deferred tax liability $ 68,883 $ 63,522 The reconciliation between the effective income tax rate and the statutory Federal income tax rate for the years ended December 31, 2020, 2019 2018 2020 2019 2018 (in thousands) Amount Percent Amount Percent Amount Percent Federal income tax at statutory rate $ 4,916 21.0 $ 2,124 21.0 $ 6,582 21.0 Nondeductible per diem and meals 321 1.4 - - - - Other nondeductible expenses, net - - 342 3.4 80 0.2 State income taxes/other, net 345 1.5 (251 ) (2.5 ) 685 2.2 Total income tax expense $ 5,582 23.9 $ 2,215 21.9 $ 7,347 23.4 The provision (benefit) for income taxes consisted of the following: 2020 2019 2018 (in thousands) Current: Federal $ (62 ) $ (56 ) $ (48 ) State 282 646 189 Total current income tax provision 220 590 141 Deferred: Federal 4,860 2,177 6,185 State 502 (552 ) 1,021 Total deferred income tax provision 5,362 1,625 7,206 Total income tax provision expense $ 5,582 $ 2,215 $ 7,347 In March 2020, not not The Company has general business credits of approximately $988,000 at December 31, 2018, 2030. 2030 not In determining whether a tax asset valuation allowance is necessary, management, in accordance with the provisions of ASC 740 10 30, December 31, 2020 2019, not The Company recognizes a tax benefit from an uncertain tax position only if it is more likely than not December 31, 2020, not 2020 2019, 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 2017

Note 13 - Stock-based Compensat

Note 13 - Stock-based Compensation	12 Months Ended
	Dec. 31, 2020
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 2014 not 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, In December 2018, one fourth four In March 2018, During 2020 2019, December 31, 2020 December 31, 2019. December 31, 2020, The grant date fair value of stock and stock options vested during 2020, 2019 2018 2020 eight first 2020 one second 2020. 2020. 2020. December 31, 2020, 2021 $ 342,000 2022 $ 375,000 2023 $ 310,000 2024 $ 297,000 2025 $ 354,000 2026 $ 288,000 2027 $ 111,000 Total pre-tax stock-based compensation expense, recognized in Salaries, wages and benefits was approximately $912,000 during 2019 first 2019. 2019. 2019. Total pre-tax stock-based compensation expense, recognized in Salaries, wages and benefits was approximately $732,000 during 2018 first 2018. 2018. 2018. Transactions in stock options under these plans are summarized as follows: Shares Under Option Weighted- Average Exercise Price Outstanding—January 1, 2018: 45,068 $ 10.79 Granted - - Exercised (45,005 ) 10.79 Canceled (63 ) 11.22 Outstanding—December 31, 2018: - $ - Granted - - Exercised - - Canceled - - Outstanding—December 31, 2019: - $ - Granted - - Exercised - - Canceled - - Outstanding—December 31, 2020: - $ - Options exercisable—December 31, 2020: - $ - There were no options granted during 2020, 2019, 2018. 2018 The total intrinsic value of options exercised during 2018 A summary of the status of the Company’s non-vested restricted stock as of December 31, 2020 December 31, 2020, Restricted Stock Number of Shares Weighted- Average Grant Date Fair Value Nonvested—January 1, 2020 55,459 $ 24.35 Granted 63,182 36.46 Canceled/forfeited/expired (18,047 ) 38.25 Vested (39,559 ) 19.18 Nonvested—December 31, 2020: 61,035 $ 36.12 Cash received from option exercises totaled approximately $0, $0 and $485,000 during the years ended December 31, 2020, 2019 2018,

Note 14 - Earnings Per Share

Note 14 - Earnings Per Share	12 Months Ended
	Dec. 31, 2020
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 during the period. Diluted earnings per common share was calculated as follows: For the Year Ended December 31, 2020 2019 2018 (in thousands, except per share data) Net income $ 17,827 $ 7,900 $ 23,994 Basic weighted average common shares outstanding 5,752 5,832 6,083 Dilutive effect of common stock equivalents 16 48 76 Diluted weighted average common shares outstanding 5,768 5,880 6,159 Basic earnings per share $ 3.10 $ 1.35 $ 3.94 Diluted earnings per share $ 3.09 $ 1.34 $ 3.90

Note 15 - Benefit Plan

Note 15 - Benefit Plan	12 Months Ended
	Dec. 31, 2020
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 2020, 2019 2018,

Note 16 - Commitments and Conti

Note 16 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	16. COMMITMENTS AND CONTINGENCIES 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, $2.0 not not Total rental expense, net of amounts reimbursed, for the years ended December 31, 2020, 2019 2018

Note 17 - Leases

Note 17 - Leases	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Lessor, Operating Leases [Text Block]	17. LEASES Right-of-Use Leases During 2019, five not 2020, not 842, December 31, 2020. not five not not December 31, 2020. Scheduled amounts and timing of cash flows arising from operating lease payments at December 31, 2020, (in thousands) Maturity of Lease Liabilities 2021 $ 627 2022 544 2023 340 2024 114 2025 - Thereafter - Total undiscounted operating lease payments $ 1,625 Less: Imputed interest (79 ) Present value of operating lease liabilities $ 1,546 Balance Sheet Classification Right-of-use assets (recorded in other non-current assets) $ 1,546 Current lease liabilities (recorded in other current liabilities) $ 627 Long-term lease liabilities (recorded in other long-term liabilities) 919 Total operating lease liabilities $ 1,546 Other Information Weighted-average remaining lease term for operating leases (in years) 2.81 Weighted-average discount rate for operating leases 3.61 % Cash Flows Right-of-use assets of $0 and $2.4 million were recognized as non-cash asset additions that resulted from new operating lease liabilities during the years ended December 31, 2020 December 31, 2019, December 31, 2020 December 31, 2019, Cash Paid for Operating Leases Twelve Months Ended December 31, 2020 2019 Right-of-Use leases $ 552 $ 255 Short-term leases (1) 2,177 2,214 Total $ 2,729 $ 2,469 ( 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 7 to 60 months. The cost and carrying amount of Company-owned trucks in this program at December 31, 2020 December 31, 2019 Leases in our lease-purchase program expire at various dates through 2025. December 31, 2020 2019 not December 31, 2020, 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, 2020, December 31, 2020 19 The Company's operating lease revenue is disclosed in the table below. Twelve Months Ended December 31, 2020 2019 Leased truck revenue (recorded in revenue, before fuel surcharge) $ 6,756 $ 9,220 Leased building space revenue (recorded in non-operating income) 573 155 Total lease revenue $ 7,329 $ 9,375 Lease Receivable Future minimum operating lease payments receivable at December 31, 2020: 2021 $ 6,613 2022 4,774 2023 2,803 2024 1,051 2025 1 Thereafter - Total future minimum lease payments receivable $ 15,242 Lease Payments to Related Parties Payments to related parties of $1,129,231 were made for real estate leases during 2020 one eleven During 2020 one one not December 31, 2020. The Company leases office and shop facilities to a related party. At December 31, 2020, $13,738,000 $12,402,000, December 31, 2020

Note 18 - Fair Value of Financi

Note 18 - Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2020
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, 2020 2019, 2020 2019 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Marketable equity securities $ 27,9417,549 $ 27,941 - - $ 29,521 $ 29,521 - - During 2020 2019, 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, 2020 2019 2020 2019 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value (in thousands) Long-term debt $ 267,860 $ 268,582 $ 224,777 $ 228,449 The Company has not

Note 19 - Related Party Transac

Note 19 - Related Party Transactions	12 Months Ended
	Dec. 31, 2020
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 $9,897,000, $2,691,000 and $2,854,000 in operating revenue and approximately $6,791,000, $9,190,000 and $9,859,000 in operating expenses in 2020, 2019, 2018, The Company purchased physical damage, auto liability, general liability, and workers’ compensation insurance through an unaffiliated insurance broker which was written by an insurance company affiliated with our Chairman and controlling stockholder. The premiums for physical damage coverage were approximately $0, $0 and $1,271,000 for 2020, 2019, 2018, 2020, 2019, 2018 2020, 2019, 2018 2020, 2019, 2018 Amounts owed to the Company by these affiliates were approximately $2,348,000 and $1,052,000 at December 31, 2020 2019, December 31, 2020 2019, December 31, 2020 2019

Note 20 - Quarterly Results of

Note 20 - Quarterly Results of Operations (Unaudited)	12 Months Ended
	Dec. 31, 2020
Notes to Financial Statements
Quarterly Financial Information [Text Block]	20. QUARTERLY RESULTS OF OPERATIONS (UNAUDITED) The tables below present quarterly financial information for 2020 2019: 2020 Three Months Ended March 31 June 30 September 30 December 31 (in thousands, except per share data) Operating revenues $ 129,155 $ 92,979 $ 121,942 $ 142,750 Operating expenses and costs 119,669 94,986 111,868 126,380 Operating income (loss) 9,486 (2,007 ) 10,074 16,370 Non-operating (loss) income (9,076 ) 2,961 (94 ) 4,510 Interest expense (2,212 ) (2,179 ) (2,211 ) (2,214 ) Income tax benefit (expense) 498 402 (1,769 ) (4,713 ) Net (loss) income $ (1,304 ) $ (823 ) $ 6,000 $ 13,953 Net (loss) income per common share: Basic $ (0.23 ) $ (0.14 ) $ 1.04 $ 2.43 Diluted $ (0.23 ) $ (0.14 ) $ 1.04 $ 2.43 Average common shares outstanding: Basic 5,746 5,766 5,763 5,734 Diluted 5,746 5,766 5,768 5,752 2019 Three Months Ended March 31 June 30 September 30 December 31 (in thousands, except per share data) Operating revenues $ 128,686 $ 133,000 $ 128,994 $ 123,497 Operating expenses and costs 118,999 119,789 121,461 141,381 Operating income (loss) 9,687 13,211 7,533 (17,884 ) Non-operating income (loss) 3,472 (197 ) 490 2,457 Interest expense (2,040 ) (2,059 ) (2,178 ) (2,377 ) Income tax (expense) benefit (2,818 ) (2,301 ) (1,264 ) 4,168 Net income (loss) $ 8,301 $ 8,654 $ 4,581 $ (13,636 ) Net income (loss) per common share: Basic $ 1.40 $ 1.47 $ 0.80 $ (2.37 ) Diluted $ 1.39 $ 1.45 $ 0.79 $ (2.37 ) Average common shares outstanding: Basic 5,921 5,901 5,756 5,751 Diluted 5,985 5,949 5,799 5,751

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
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., P.A.M. Logistics Services, 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 not zero not December 31, 2020 2019
Accounts Receivable [Policy Text Block]	Accounts Receivable Other December 31, 2020 2019, December 31, 2020 2019,
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 2020 2019.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment Asset Class Estimated Asset Life Service vehicles 3 - 5 Office furniture and equipment 3 - 7 Revenue equipment 3 - 8 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 2020 2019, not
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, 2020, 2019 2018,
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, 2020 2019, 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, 2020, 2019 2018,
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations of Credit Risk not
Subsequent Events, Policy [Policy Text Block]	Subsequent Events no
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 June 2016, No. 2016 13, 2016 13” 326 2016 13 2016 - 13 December 15, 2022 , January 1, 2020 not In March 2020, No. 2020 - 04, 2020 - 04” 848 2020 - 04 2020 - 04 March 12, 2020 December 31, 2022 . not not

Note 1 - Accounting Policies (T

Note 1 - Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Property, Plant and Equipment [Table Text Block]	Asset Class Estimated Asset Life Service vehicles 3 - 5 Office furniture and equipment 3 - 7 Revenue equipment 3 - 8 Structures and improvements 5 - 40

Note 3 - Trade Accounts Recei_2

Note 3 - Trade Accounts Receivable (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	2020 2019 (in thousands) Billed $ 68,584 $ 57,495 Unbilled 12,629 7,241 Current estimated credit losses (3,482 ) (2,952 ) Total accounts receivable—net $ 77,731 $ 61,784
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	2020 2019 2018 (in thousands) Balance—beginning of year $ 2,952 $ 2,224 $ 1,335 Provision for bad debts 530 728 889 Charge-offs - - - Recoveries - - - Balance—end of year $ 3,482 $ 2,952 $ 2,224

Note 4 - Marketable Equity Se_2

Note 4 - Marketable Equity Securities (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Marketable Securities [Table Text Block]	2020 2019 (in thousands) Available-for-sale securities: Fair market value $ 27,941 $ 29,521 Cost 25,860 24,156 Unrealized gain $ 2,081 $ 5,365
Unrealized Gain (Loss) on Investments [Table Text Block]	2020 2019 (in thousands) Available-for-sale securities: Gross unrealized gains $ 7,048 $ 7,808 Gross unrealized losses 4,967 2,443 Net unrealized gains $ 2,081 $ 5,365
Schedule of Realized Gain (Loss) [Table Text Block]	2020 2019 2018 (in thousands) Realized (losses) gains: Sale proceeds $ 2,039 $ 2,984 $ 1,044 Cost of securities sold 2,216 1,929 669 Realized (losses) / gains $ (177 ) $ 1,055 $ 375 Realized (losses) / gains, net of taxes $ (90 ) $ 815 $ 278

Note 5 - Accrued Expenses and_2

Note 5 - Accrued Expenses and Other Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	2020 2019 (in thousands) Payroll $ 1,621 $ 2,226 Accrued vacation 835 2,191 Taxes—other than income 6,881 2,719 Interest 301 284 Driver escrows 1,782 2,211 Margin account borrowings 11,251 7,474 Self-insurance claims 3,303 2,988 Legal reserves - 19,901 Current portion of Right-of-Use asset 627 616 Total accrued expenses and other liabilities $ 26,601 $ 40,610

Note 7 - Long-term Debt (Tables

Note 7 - Long-term Debt (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Long-term Debt Instruments [Table Text Block]	2020 2019 (in thousands) Line of credit with a bank—due July 1, 2022, and collateralized by accounts receivable (1) 18,246 17,047 Equipment financing (2) 250,572 224,777 Real estate financing (3) 17,288 - Total long-term debt 286,106 241,824 Less current maturities (57,776 ) (67,637 ) Long-term debt—net of current maturities $ 228,330 $ 174,187
Schedule of Maturities of Long-term Debt [Table Text Block]	2021 $ 57,776 2022 72,681 2023 66,767 2024 43,116 2025 30,596 2026 7,921 Thereafter 7,249 Total $ 286,106

Note 10 - Segment Information_2

Note 10 - Segment Information, Significant Customers, Industry Concentration and Geographic Areas Dividends (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Reconciliation of Revenue from Segments to Consolidated [Table Text Block]	Year Ended December 31, 2020 2019 2018 (in thousands) Amount Percent Amount Percent Amount Percent United States - domestic shipments $ 316,542 66.1 $ 326,559 63.5 $ 302,754 56.8 Shipments to or from Mexico 161,412 33.7 186,392 36.3 229,350 43.0 Shipments to or from Canada 1,156 0.2 1,226 0.2 1,157 0.2 Total Operating Revenues $ 479,110 100 % $ 514,177 100 % $ 533,261 100 %

Note 12 - Federal and State I_2

Note 12 - Federal and State Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	2020 2019 (in thousands) Deferred tax liabilities: Property and equipment $ 100,736 $ 83,453 Unrealized gains on securities 2,580 2,580 Prepaid expenses and other 2,599 2,193 Total deferred tax liabilities 105,915 88,226 Deferred tax assets: Current expected credit losses 896 760 Tax credit carryforwards 988 988 Compensated absences 189 512 Self-insurance allowances 674 5,630 Marketable equity securities 2,129 1,253 Net operating loss carryover 32,031 15,364 Other 125 197 Total deferred tax assets 37,032 24,704 Net deferred tax liability $ 68,883 $ 63,522
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2020 2019 2018 (in thousands) Amount Percent Amount Percent Amount Percent Federal income tax at statutory rate $ 4,916 21.0 $ 2,124 21.0 $ 6,582 21.0 Nondeductible per diem and meals 321 1.4 - - - - Other nondeductible expenses, net - - 342 3.4 80 0.2 State income taxes/other, net 345 1.5 (251 ) (2.5 ) 685 2.2 Total income tax expense $ 5,582 23.9 $ 2,215 21.9 $ 7,347 23.4
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	2020 2019 2018 (in thousands) Current: Federal $ (62 ) $ (56 ) $ (48 ) State 282 646 189 Total current income tax provision 220 590 141 Deferred: Federal 4,860 2,177 6,185 State 502 (552 ) 1,021 Total deferred income tax provision 5,362 1,625 7,206 Total income tax provision expense $ 5,582 $ 2,215 $ 7,347

Note 13 - Stock-based Compens_2

Note 13 - Stock-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	2021 $ 342,000 2022 $ 375,000 2023 $ 310,000 2024 $ 297,000 2025 $ 354,000 2026 $ 288,000 2027 $ 111,000
Share-based Payment Arrangement, Option, Activity [Table Text Block]	Shares Under Option Weighted- Average Exercise Price Outstanding—January 1, 2018: 45,068 $ 10.79 Granted - - Exercised (45,005 ) 10.79 Canceled (63 ) 11.22 Outstanding—December 31, 2018: - $ - Granted - - Exercised - - Canceled - - Outstanding—December 31, 2019: - $ - Granted - - Exercised - - Canceled - - Outstanding—December 31, 2020: - $ - Options exercisable—December 31, 2020: - $ -
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, 2020 55,459 $ 24.35 Granted 63,182 36.46 Canceled/forfeited/expired (18,047 ) 38.25 Vested (39,559 ) 19.18 Nonvested—December 31, 2020: 61,035 $ 36.12

Note 14 - Earnings Per Share (T

Note 14 - Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Year Ended December 31, 2020 2019 2018 (in thousands, except per share data) Net income $ 17,827 $ 7,900 $ 23,994 Basic weighted average common shares outstanding 5,752 5,832 6,083 Dilutive effect of common stock equivalents 16 48 76 Diluted weighted average common shares outstanding 5,768 5,880 6,159 Basic earnings per share $ 3.10 $ 1.35 $ 3.94 Diluted earnings per share $ 3.09 $ 1.34 $ 3.90

Note 17 - Leases (Tables)

Note 17 - Leases (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	(in thousands) Maturity of Lease Liabilities 2021 $ 627 2022 544 2023 340 2024 114 2025 - Thereafter - Total undiscounted operating lease payments $ 1,625 Less: Imputed interest (79 ) Present value of operating lease liabilities $ 1,546 Balance Sheet Classification Right-of-use assets (recorded in other non-current assets) $ 1,546 Current lease liabilities (recorded in other current liabilities) $ 627 Long-term lease liabilities (recorded in other long-term liabilities) 919 Total operating lease liabilities $ 1,546 Other Information Weighted-average remaining lease term for operating leases (in years) 2.81 Weighted-average discount rate for operating leases 3.61 %
Lease, Cost [Table Text Block]	Twelve Months Ended December 31, 2020 2019 Right-of-Use leases $ 552 $ 255 Short-term leases (1) 2,177 2,214 Total $ 2,729 $ 2,469
Operating Lease, Lease Income [Table Text Block]	Twelve Months Ended December 31, 2020 2019 Leased truck revenue (recorded in revenue, before fuel surcharge) $ 6,756 $ 9,220 Leased building space revenue (recorded in non-operating income) 573 155 Total lease revenue $ 7,329 $ 9,375
Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block]	2021 $ 6,613 2022 4,774 2023 2,803 2024 1,051 2025 1 Thereafter - Total future minimum lease payments receivable $ 15,242

Note 18 - Fair Value of Finan_2

Note 18 - Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	2020 2019 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Marketable equity securities $ 27,9417,549 $ 27,941 - - $ 29,521 $ 29,521 - -
Fair Value, by Balance Sheet Grouping [Table Text Block]	2020 2019 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value (in thousands) Long-term debt $ 267,860 $ 268,582 $ 224,777 $ 228,449

Note 20 - Quarterly Results o_2

Note 20 - Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2020
Notes Tables
Quarterly Financial Information [Table Text Block]	2020 Three Months Ended March 31 June 30 September 30 December 31 (in thousands, except per share data) Operating revenues $ 129,155 $ 92,979 $ 121,942 $ 142,750 Operating expenses and costs 119,669 94,986 111,868 126,380 Operating income (loss) 9,486 (2,007 ) 10,074 16,370 Non-operating (loss) income (9,076 ) 2,961 (94 ) 4,510 Interest expense (2,212 ) (2,179 ) (2,211 ) (2,214 ) Income tax benefit (expense) 498 402 (1,769 ) (4,713 ) Net (loss) income $ (1,304 ) $ (823 ) $ 6,000 $ 13,953 Net (loss) income per common share: Basic $ (0.23 ) $ (0.14 ) $ 1.04 $ 2.43 Diluted $ (0.23 ) $ (0.14 ) $ 1.04 $ 2.43 Average common shares outstanding: Basic 5,746 5,766 5,763 5,734 Diluted 5,746 5,766 5,768 5,752 2019 Three Months Ended March 31 June 30 September 30 December 31 (in thousands, except per share data) Operating revenues $ 128,686 $ 133,000 $ 128,994 $ 123,497 Operating expenses and costs 118,999 119,789 121,461 141,381 Operating income (loss) 9,687 13,211 7,533 (17,884 ) Non-operating income (loss) 3,472 (197 ) 490 2,457 Interest expense (2,040 ) (2,059 ) (2,178 ) (2,377 ) Income tax (expense) benefit (2,818 ) (2,301 ) (1,264 ) 4,168 Net income (loss) $ 8,301 $ 8,654 $ 4,581 $ (13,636 ) Net income (loss) per common share: Basic $ 1.40 $ 1.47 $ 0.80 $ (2.37 ) Diluted $ 1.39 $ 1.45 $ 0.79 $ (2.37 ) Average common shares outstanding: Basic 5,921 5,901 5,756 5,751 Diluted 5,985 5,949 5,799 5,751

Note 1 - Accounting Policies (D

Note 1 - Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Bank Overdrafts	$ 7,638,000	$ 2,572,000
Due from Employees, Current	136,000	211,000
Other Receivables, Net, Current, Total	5,127,000	3,769,000
Impairment of Long-Lived Assets Held-for-use	$ 0	0
Period for Amortizing Prepaid Tires (Month)	24 months
Advertising Expense	$ 1,102,000	$ 1,269,000	$ 1,234,000
Truckload Services [Member] | Sales [Member] | Product Concentration Risk [Member]
Concentration Risk, Percentage	76.90%	82.70%	80.00%
Independent Contractors [Member]
Other Receivables, Net, Current, Total	$ 614,000	$ 1,381,000

Note 1 - Accounting Policies -

Note 1 - Accounting Policies - Useful Lives of Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2020
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)	7 years
Machinery and Equipment [Member] | Minimum [Member]
Property and equipment (Year)	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property and equipment (Year)	8 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, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Billed	$ 68,584	$ 57,495
Unbilled	12,629	7,241
Current estimated credit losses	(3,482)	(2,952)	$ (2,224)	$ (1,335)
Total accounts receivable—net	$ 77,731	$ 61,784

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, 2020	Dec. 31, 2019	Dec. 31, 2018
Balance—beginning of year	$ 2,952	$ 2,224	$ 1,335
Provision for bad debts	530	728	889
Charge-offs	0	0	0
Recoveries	0	0	0
Balance—end of year	$ 3,482	$ 2,952	$ 2,224

Note 4 - Marketable Equity Se_3

Note 4 - Marketable Equity Securities (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Investment Income, Dividend	$ 1,266,000	$ 1,309,000	$ 1,171,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	10,221,000	8,587,000
Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax	$ 4,967,000	$ 2,443,000
Margin Account Borrowings [Member]
Debt, Weighted Average Interest Rate	0.75%	2.40%
Margin Account Borrowings [Member] | Accrued Expenses and Other Liabilities [Member]
Short-term Debt, Total	$ 11,251,000	$ 7,474,000

Note 4 - Marketable Equity Se_4

Note 4 - Marketable Equity Securities - Securities Classified As Available-for-sale (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair market value	$ 27,941	$ 29,521
Cost	25,860	24,156
Unrealized gain	$ 2,081	$ 5,365

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, 2020	Dec. 31, 2019
Gross unrealized gains	$ 7,048	$ 7,808
Gross unrealized losses	4,967	2,443
Net unrealized gains	$ 2,081	$ 5,365

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, 2020	Dec. 31, 2019	Dec. 31, 2018
Sale proceeds	$ 2,039	$ 2,984	$ 1,044
Cost of securities sold	2,216	1,929	669
Realized (losses) / gains	(177)	1,055	375
Realized (losses) / gains, net of taxes	$ (90)	$ 815	$ 278

Note 5 - Accrued Expenses and_3

Note 5 - Accrued Expenses and Other Liabilities (Details Textual) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Accounts Payable, Current, Total	$ 46,102,000	$ 16,597,000
Revenue Equipment [Member]
Accounts Payable, Current, Total	$ 9,050,000

Note 5 - Accrued Expenses and_4

Note 5 - Accrued Expenses and Other Liabilities - Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Payroll	$ 1,621	$ 2,226
Accrued vacation	835	2,191
Taxes—other than income	6,881	2,719
Interest	301	284
Driver escrows	1,782	2,211
Margin account borrowings	11,251	7,474
Self-insurance claims	3,303	2,988
Legal reserves	0	19,901
Total accrued expenses and other liabilities	26,601	40,610
Accrued Expenses and Other Liabilities [Member]
Current lease liabilities (recorded in other current liabilities)	$ 627	$ 616

Note 6 - Claims Liabilities (De

Note 6 - Claims Liabilities (Details Textual) - USD ($)	Dec. 31, 2020	Sep. 01, 2020	Dec. 31, 2019	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		$ 430,000
Stop Loss for Self Insurance for Employee Health Claims Per Covered Employee Per Year	350,000
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	310,000
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, 2020USD ($)	Dec. 31, 2019USD ($)
Letters of Credit Outstanding, Amount	$ 310,000	$ 430,000
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, Interest Rate at Period End	1.40%
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	$ 18,600,000	17,400,000
Letters of Credit Outstanding, Amount	300,000	$ 400,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 41,400,000
Line of Credit [Member] | Equipment Financing [Member]
Long-term Debt, Weighted Average Interest Rate, at Point in Time	3.30%
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.25%

Note 7 - Long-term Debt - Summa

Note 7 - Long-term Debt - Summary of Long-term Debt (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Long-term debt		$ 286,106	$ 241,824
Less current maturities		(57,776)	(67,637)
Long-term debt—net of current maturities		228,330	174,187
Line of Credit [Member]
Long-term debt	[1]	18,246	17,047
Secured Debt [Member]
Long-term debt	[2]	250,572	224,777
Texas Real Estate Agreement [Member]
Long-term debt	[3]	$ 17,288
Real Estate Financing [Member]
Long-term debt	[3]		$ 0
[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 plus 1.25% (1.40% at December 31, 2020) 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 2020. At December 31, 2020, outstanding advances on the line were approximately $18.6 million, including letters of credit totaling $0.3 million, with availability to borrow $41.4 million. At December 31, 2019, outstanding advances on the line were approximately $17.4 million, including letters of credit totaling $0.4 million.
[2]	Equipment financings consist of installment obligations for revenue equipment purchases, payable in various monthly installments with various maturity dates through September 2026, at a weighted average interest rate of 3.30% as of December 31, 2020 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, 2020	Dec. 31, 2019
2021	$ 57,776
2022	72,681
2023	66,767
2024	43,116
2025	30,596
2026	7,921
Thereafter	7,249
Total	$ 286,106	$ 241,824

Note 8 - Noncash Investing an_2

Note 8 - Noncash Investing and Financing Activities (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Noncash or Part Noncash Acquisition, Fixed Assets Acquired	$ 80.7	$ 24.5

Note 9 - Capital Stock (Details

Note 9 - Capital Stock (Details Textual) - USD ($)	Jun. 13, 2019	May 13, 2019	Jun. 08, 2018	May 08, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Apr. 30, 2017
Common Stock, Shares Authorized (in shares)					40,000,000	40,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)					$ 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)					$ 0.01	$ 0.01
Common Stock, Shares, Issued, Total (in shares)					11,695,719	11,656,160
Common Stock, Shares, Outstanding, Ending Balance (in shares)					5,727,895	5,748,897
Preferred Stock, Shares Issued, Total (in shares)					0	0
Treasury Stock, Value, Acquired, Cost Method					$ 2,281,000	$ 14,285,000	$ 13,369,000
Treasury Stock, Shares, Ending Balance (in shares)					5,967,824	5,907,263
Treasury Stock, Value, Ending Balance					$ 159,118,275	$ 156,837,000
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%
Stock Repurchase Program Additional Shares Authorized To Be Repurchased Percent Of Outstanding Shares, Shares (in shares)		118,996
Treasury Stock, Shares, Acquired (in shares)	192,743
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)	$ 60
Treasury Stock, Value, Acquired, Cost Method	$ 11,600,000
The 2019 Tender Offer [Member] | Minimum [Member]
Treasury Stock Acquired Cost Per Share (in dollars per share)		$ 55
The 2019 Tender Offer [Member] | Maximum [Member]
Treasury Stock Acquired Cost Per Share (in dollars per share)		$ 60
The 2018 Tender Offer [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)				100,000
Stock Repurchase Program Additional Shares Authroized To Be Repurchased Percent Of Outstanding Shares Percent				2.00%
Stock Repurchase Program Additional Shares Authorized To Be Repurchased Percent Of Outstanding Shares, Shares (in shares)				124,248
Treasury Stock, Shares, Acquired (in shares)			185,597
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)			$ 40
Treasury Stock, Value, Acquired, Cost Method			$ 7,500,000
The 2018 Tender Offer [Member] | Minimum [Member]
Treasury Stock Acquired Cost Per Share (in dollars per share)				$ 39
The 2018 Tender Offer [Member] | Maximum [Member]
Treasury Stock Acquired Cost Per Share (in dollars per share)				$ 43
September 2011 Reauthorization [Member]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased (in shares)								500,000
Treasury Stock, Shares, Acquired (in shares)					60,561	58,934

Note 10 - Segment Information_3

Note 10 - Segment Information, Significant Customers, Industry Concentration and Geographic Areas Dividends (Details Textual) - Customer Concentration Risk [Member] - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Sales [Member] | Five Largest Customers [Member]
Concentration Risk, Percentage	35.00%	40.00%	42.00%
Sales [Member] | General Motors Company [Member]
Concentration Risk, Percentage	15.00%	19.00%	13.00%
Sales [Member] | Fiat Chrysler Automobiles [Member]
Concentration Risk, Percentage	6.00%	9.00%	16.00%
Sales [Member] | Ford Motor Company [Member]
Concentration Risk, Percentage	5.00%	7.00%	8.00%
Revenue Provided to the Automobile Manufacturing Industry [Member]
Concentration Risk, Percentage	30.00%	40.00%	46.00%
Accounts Receivable [Member]
Accounts Receivable, before Allowance for Credit Loss, Current	$ 25,593,000	$ 31,327,000

Note 10 - Segment Information_4

Note 10 - Segment Information, Significant Customers, Industry Concentration, and Geographic Areas Dividends - Revenue Dollars and Percentages by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating revenues	$ 142,750	$ 121,942	$ 92,979	$ 129,155	$ 123,497	$ 128,994	$ 133,000	$ 128,686	$ 486,825	$ 514,177	$ 533,261
Motor Carrier [Member]
Operating revenues									$ 479,110	$ 514,177	$ 533,261
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									$ 316,542	$ 326,559	$ 302,754
Motor Carrier [Member] | UNITED STATES | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Operating Revenues, percentage									66.10%	63.50%	56.80%
Motor Carrier [Member] | MEXICO
Operating revenues									$ 161,412	$ 186,392	$ 229,350
Motor Carrier [Member] | MEXICO | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Operating Revenues, percentage									33.70%	36.30%	43.00%
Motor Carrier [Member] | CANADA
Operating revenues									$ 1,156	$ 1,226	$ 1,157
Motor Carrier [Member] | CANADA | Revenue Benchmark [Member] | Geographic Concentration Risk [Member]
Operating Revenues, percentage									0.20%	0.20%	0.20%

Note 12 - Federal and State I_3

Note 12 - Federal and State Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets, Tax Credit Carryforwards, General Business			$ 988,000
Operating Loss Carryforwards, Total	$ 59,715,000
Operating Loss Carryforwards, To Expire	30,835,000
Income Tax Examination, Penalties and Interest Expense, Total	$ 0	$ 0
Statute of Limitations (Year)	3 years

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, 2020	Dec. 31, 2019
Deferred tax liabilities:
Property and equipment	$ 100,736	$ 83,453
Unrealized gains on securities	2,580	2,580
Prepaid expenses and other	2,599	2,193
Total deferred tax liabilities	105,915	88,226
Deferred tax assets:
Current expected credit losses	896	760
Tax credit carryforwards	988	988
Compensated absences	189	512
Self-insurance allowances	674	5,630
Marketable equity securities	2,129	1,253
Net operating loss carryover	32,031	15,364
Other	125	197
Total deferred tax assets	37,032	24,704
Net deferred tax liability	$ 68,883	$ 63,522

Note 12 - Federal and State I_5

Note 12 - Federal and State Income Taxes - Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Federal income tax at statutory rate, amount									$ 4,916	$ 2,124	$ 6,582
Federal income tax at statutory rate, percent									21.00%	21.00%	21.00%
Nondeductible per diem and meals, amount									$ 321	$ 0	$ 0
Nondeductible per diem and meals, percent									1.40%	0.00%	0.00%
Other nondeductible expenses, net, amount									$ 0	$ 342	$ 80
Other nondeductible expenses, net, percent									0.00%	3.40%	0.20%
State income taxes/other, net, amount									$ 345	$ (251)	$ 685
State income taxes/other, net, percent									1.50%	(2.50%)	2.20%
Total federal & state income tax expense	$ 4,713	$ 1,769	$ (402)	$ (498)	$ (4,168)	$ 1,264	$ 2,301	$ 2,818	$ 5,582	$ 2,215	$ 7,347
Total income tax (benefit) expense, percent									23.90%	21.90%	23.40%

Note 12 - Federal and State I_6

Note 12 - Federal and State Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal									$ (62)	$ (56)	$ (48)
State									282	646	189
Total current income tax provision									220	590	141
Deferred:
Federal									4,860	2,177	6,185
State									502	(552)	1,021
Total deferred income tax provision									5,362	1,625	7,206
Total income tax provision expense	$ 4,713	$ 1,769	$ (402)	$ (498)	$ (4,168)	$ 1,264	$ 2,301	$ 2,818	$ 5,582	$ 2,215	$ 7,347

Note 13 - Stock-based Compens_3

Note 13 - Stock-based Compensation (Details Textual) - USD ($)	May 29, 2014	Aug. 31, 2020	Apr. 30, 2020	Mar. 31, 2020	Jan. 31, 2020	May 31, 2019	Apr. 30, 2019	Dec. 31, 2018	Mar. 31, 2018	Jun. 30, 2020	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 30, 2020	Dec. 31, 2017
Number of Common Stock Accrued Under Share-based Compensation Plan (in shares)																0
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)														$ 0	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)														0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)								0						0	0	0		45,068
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value														$ 759,000	$ 953,000	$ 719,000
Share-based Payment Arrangement, Expense													$ 732,000	461,000	912,000
Share-based Payment Arrangement, Expense, Tax Benefit														$ 100,000	$ 200,000	$ 172,000
Allocated Share-based Compensation Expense, Impact on Earnings Per Share, Diluted (in dollars per share)														$ 0.06	$ 0.12	$ 0.09
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total														$ 2,077,000
Allocated Share-based Compensation Expense, Impact on Earnings Per Share, Basic (in dollars per share)																0.10
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value (in dollars per share)																$ 6.34
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value																$ 1,406,000
Proceeds from Stock Options Exercised														0	$ 0	$ 485,000
Director [Member] | Salaries, Wages and Benefits [Member]
Share-based Payment Arrangement, Expense													$ 70,000	$ 90,000	$ 100,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Grants in Period (in shares)												205	276
Restricted Stock [Member]
Number of Common Stock Accrued Under Share-based Compensation Plan (in shares)														63,182
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)														$ 36.46
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value (in dollars per share)														$ 38.25
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)										242	326
The 2014 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)	750,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)														0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)														0	0
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)														362,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Key Employees [Member]
Number of Common Stock Accrued Under Share-based Compensation Plan (in shares)		13,332			7,000			33,000
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)		$ 30.25			$ 56.45			$ 36.35
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		4 years						4 years
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Director [Member]
Number of Common Stock Accrued Under Share-based Compensation Plan (in shares)			242	2,608		213	1,845		1,932
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)			$ 41.40	$ 30.75		$ 47.06	$ 48.94		$ 36.35
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member]
Number of Common Stock Accrued Under Share-based Compensation Plan (in shares)		40,000
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)		$ 35.37
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | Vesting In 2022 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares		$ 5,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | Vesting In 2023 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares		5,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | Vesting In 2024 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares		5,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | Vesting In 2027 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares		$ 5,000
The 2014 Stock Option Plan [Member] | Stock Award [Member] | Chief Executive Officer [Member] | Vesting In 2025 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Number of Shares																	$ 10,000
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, 2020USD ($)
2021	$ 342,000
2022	375,000
2023	310,000
2024	297,000
2025	354,000
2026	288,000
2027	$ 111,000

Note 13 - Stock-based Compens_5

Note 13 - Stock-based Compensation - Employee Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Outstanding (in shares)	0	0	45,068
Balance, weighted average exercise price (in dollars per share)	$ 0	$ 0	$ 10.79
Number of Common Stock Accrued Under Share-based Compensation Plan (in shares)			0
Weighted average exercise price, granted (in dollars per share)	$ 0	$ 0	$ 0
Exercised (in shares)	0	0	(45,005)
Weighted average exercise price, exercised (in dollars per share)	$ 0	$ 0	$ 10.79
Canceled (in shares)	0	0	(63)
Weighted average exercise price, canceled (in dollars per share)	$ 0	$ 0	$ 11.22
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)	0	0	0
Outstanding (in shares)	0	0	0
Balance, weighted average exercise price (in dollars per share)	$ 0	$ 0	$ 0
Options exercisable (in shares)	0
Weighted average exercise price, options exercisable (in dollars per share)	$ 0

Note 13 - Stock Based Compensat

Note 13 - Stock Based Compensation - Summary of Nonvested Restricted Stock (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Granted (in shares)			0
Weighted average exercise price, granted (in dollars per share)	$ 0	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value (in dollars per share)			$ 6.34
Restricted Stock [Member]
Non-vested (in shares)	55,459
Nonvested - weighted average grant date fair value (in dollars per share)	$ 24.35
Granted (in shares)	63,182
Weighted average exercise price, granted (in dollars per share)	$ 36.46
Canceled/forfeited/expired (in shares)	(18,047)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value (in dollars per share)	$ 38.25
Vested (in shares)	(39,559)
Vested - weighted average grant date fair value (in dollars per share)	$ 19.18
Non-vested (in shares)	61,035	55,459
Nonvested - weighted average grant date fair value (in dollars per share)	$ 36.12	$ 24.35

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	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net income	$ 13,953	$ 6,000	$ (823)	$ (1,304)	$ (13,636)	$ 4,581	$ 8,654	$ 8,301	$ 17,827	$ 7,900	$ 23,994
Basic (in shares)	5,734	5,763	5,766	5,746	5,751	5,756	5,901	5,921	5,752	5,832	6,083
Dilutive effect of common stock equivalents (in shares)									16	48	76
Diluted weighted average common shares outstanding (in shares)	5,752	5,768	5,766	5,746	5,751	5,799	5,949	5,985	5,768	5,880	6,159
Basic (in dollars per share)	$ 2.43	$ 1.04	$ (0.14)	$ (0.23)	$ (2.37)	$ 0.80	$ 1.47	$ 1.40	$ 3.10	$ 1.35	$ 3.94
Diluted (in dollars per share)	$ 2.43	$ 1.04	$ (0.14)	$ (0.23)	$ (2.37)	$ 0.79	$ 1.45	$ 1.39	$ 3.09	$ 1.34	$ 3.90

Note 15 - Benefit Plan (Details

Note 15 - Benefit Plan (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
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	$ 198,000	$ 176,000

Note 16 - Commitments and Con_2

Note 16 - Commitments and Contingencies (Details Textual) - USD ($)	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 01, 2020	Jul. 31, 2020	Sep. 01, 2019
Self Insurance Auto Liability Claims Threshold Amount					$ 2,000,000		$ 1,000,000
Trucks under Operating Lease [Member]
Operating Lease, Expense		$ 0	$ 0	$ 47,000
The Violations under the Fair Labor Standards Act and the Arkansas Minimum Wage [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, 2020	Dec. 31, 2019	Dec. 31, 2018
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 0	$ 2,400,000
Operating Lease, Payments	600,000	300,000
Property, Plant and Equipment, Gross, Ending Balance	653,676,000	563,162,000
Property, Plant and Equipment, Net, Ending Balance	450,825,000	387,275,000
Lessor, Operating Lease, Payments to be Received, Total	15,242,000
Depreciation, Total	56,168,000	55,107,000	$ 49,387,000
Majority Shareholder [Member]
Operating Lease, Payments	1,129,231
Lessor, Operating Lease, Payments to be Received, Total	12,100
Trucks under Operating Lease [Member]
Property, Plant and Equipment, Gross, Ending Balance	49,228,000	60,130,000
Property, Plant and Equipment, Net, Ending Balance	24,708,000	33,757,000
Lessor, Operating Lease, Payments to be Received, Total	15,242,000	$ 18,792,000
Depreciation, Total	6,200,000
Shop and Office Space [Member] | Majority Shareholder [Member]
Property, Plant and Equipment, Gross, Ending Balance	13,738,000
Property, Plant and Equipment, Net, Ending Balance	12,402,000
Lessor, Operating Lease, Payments to be Received, Total	705,000
Shop and Office Space [Member]
Operating Leases, Future Minimum Payments Receivable, Total	214,000
Leases without Early Cancellation Options [Member] | Other Noncurrent Assets [Member]
Operating Lease, Right-of-Use Asset	$ 1,500,000
Maximum [Member] | Trucks [Member]
Lessor, Operating Lease, Term of Contract (Month)	60 months
Maximum [Member] | Shop and Office Leases with Early Cancellation Options [Member]
Lessee, Operating Lease, Term of Contract (Year)	5 years
Minimum [Member] | Trucks [Member]
Lessor, Operating Lease, Term of Contract (Month)	7 months

Note 17 - Leases - Operating Le

Note 17 - Leases - Operating Lease (Details) $ in Thousands	Dec. 31, 2020USD ($)
2021	$ 627
2022	544
2023	340
2024	114
2025	0
Thereafter	0
Total undiscounted operating lease payments	1,625
Less: Imputed interest	$ (79)
Weighted-average remaining lease term for operating leases (in years) (Year)	2 years 9 months 21 days
Weighted-average discount rate for operating leases	3.61%
Accrued Expenses And Other Liabilities And Other Long-term Liabilities [Member]
Present value of operating lease liabilities	$ 1,546
Right-of-use assets (recorded in other non-current assets)	1,546
Total operating lease liabilities	1,546
Other Current Liabilities [Member]
Current lease liabilities (recorded in other current liabilities)	627
Other Noncurrent Liabilities [Member]
Long-term lease liabilities (recorded in other long-term liabilities)	$ 919

Note 17 - Leases - Lease Cost (

Note 17 - Leases - Lease Cost (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Right-of-Use leases		$ 552	$ 255
Short-term leases (1)	[1]	2,177	2,214
Total		$ 2,729	$ 2,469
[1]	Short-term lease cost includes leases with a term of twelve months or less and leases with options for early cancellation.

Note 17 - Leases - Lease Revenu

Note 17 - Leases - Lease Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Lease revenue	$ 7,329	$ 9,375
Trucks under Operating Lease [Member]
Lease revenue	6,756	9,220
Dock Space under Operating Lease [Member]
Lease revenue	$ 573	$ 155

Note 17 - Leases - Lease Receiv

Note 17 - Leases - Lease Receivables (Details) $ in Thousands	Dec. 31, 2020USD ($)
2021	$ 6,613
2022	4,774
2023	2,803
2024	1,051
2025	1
Thereafter	0
Total future minimum lease payments receivable	$ 15,242

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, 2020	Dec. 31, 2019
Marketable equity securities	$ 27,941	$ 29,521
Fair Value, Inputs, Level 1 [Member]
Marketable equity securities	27,941	29,521
Fair Value, Inputs, Level 2 [Member]
Marketable equity securities	0	0
Fair Value, Inputs, Level 3 [Member]
Marketable equity securities	$ 0	$ 0

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, 2020	Dec. 31, 2019
Reported Value Measurement [Member]
Long-term debt	$ 267,860	$ 224,777
Estimate of Fair Value Measurement [Member]
Long-term debt	$ 268,582	$ 228,449

Note 19 - Related Party Trans_2

Note 19 - Related Party Transactions (Details Textual) - Majority Shareholder [Member] - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue from Related Parties	$ 9,897,000	$ 2,691,000	$ 2,854,000
Related Party Transaction, Expenses from Transactions with Related Party	6,791,000	9,190,000	9,859,000
Due from Related Parties, Total	2,348,000	1,052,000
Due to Related Parties, Total	1,864,000	961,000
Freight Transportation [Member]
Accounts Receivable, Related Parties	2,236,000	1,052,000
Maintenance Performed and Charges Paid to Third Parties on Behalf of Their Affiliate and Charged Back [Member]
Accounts Receivable, Related Parties	112,000	0
Physical Damage Coverage [Member]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	0	0	1,271,000
Auto Liability Coverage [Member]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	8,516,000	10,345,000	10,987,000
General Liability Coverage [Member]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	0	0	24,000
Workers Compensation Coverage [Member]
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party	$ 299,000	$ 266,000	$ 301,000

Note 20 - Quarterly Results o_3

Note 20 - Quarterly Results of Operations (Unaudited) - Quarterly Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating revenues	$ 142,750	$ 121,942	$ 92,979	$ 129,155	$ 123,497	$ 128,994	$ 133,000	$ 128,686	$ 486,825	$ 514,177	$ 533,261
Operating expenses and costs	126,380	111,868	94,986	119,669	141,381	121,461	119,789	118,999	452,902	501,630	491,659
Operating income (loss)	16,370	10,074	(2,007)	9,486	(17,884)	7,533	13,211	9,687	33,923	12,547	41,602
Non-operating (loss) income	4,510	(94)	2,961	(9,076)	2,457	490	(197)	3,472	(1,699)	6,222	(4,016)
Interest expense	(2,214)	(2,211)	(2,179)	(2,212)	(2,377)	(2,178)	(2,059)	(2,040)	(8,815)	(8,654)	(6,245)
Income tax benefit (expense)	(4,713)	(1,769)	402	498	4,168	(1,264)	(2,301)	(2,818)	(5,582)	(2,215)	(7,347)
Net income	$ 13,953	$ 6,000	$ (823)	$ (1,304)	$ (13,636)	$ 4,581	$ 8,654	$ 8,301	$ 17,827	$ 7,900	$ 23,994
Basic (in dollars per share)	$ 2.43	$ 1.04	$ (0.14)	$ (0.23)	$ (2.37)	$ 0.80	$ 1.47	$ 1.40	$ 3.10	$ 1.35	$ 3.94
Diluted (in dollars per share)	$ 2.43	$ 1.04	$ (0.14)	$ (0.23)	$ (2.37)	$ 0.79	$ 1.45	$ 1.39	$ 3.09	$ 1.34	$ 3.90
Basic (in shares)	5,734	5,763	5,766	5,746	5,751	5,756	5,901	5,921	5,752	5,832	6,083
Diluted (in shares)	5,752	5,768	5,766	5,746	5,751	5,799	5,949	5,985	5,768	5,880	6,159