Consolidated Condensed Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 73,730	$ 53,213
Trade, net	105,247	105,501
Other	10,380	10,356
Prepaid expenses and other	24,665	27,512
Total current assets	214,022	196,582
Property and equipment:
Revenue equipment, buildings and land, office equipment and other	1,155,649	1,162,336
Accumulated depreciation	(378,151)	(370,103)
Net property and equipment	777,498	792,233
Other noncurrent assets	1,499	1,524
Total assets	993,019	990,339
Current liabilities:
Accounts payable	37,728	36,516
Insurance and claims accruals	44,297	47,017
Accrued and other current liabilities	29,417	26,709
Total current liabilities	111,442	110,242
Deferred income taxes	118,946	122,462
Noncurrent operating lease liabilities	202	249
Total liabilities	230,590	232,953
Stockholders’ equity:
Preferred stock, $.01 par value per share; 2,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $.01 par value per share; 192,000,000 shares authorized; 81,362,709 shares at March 31, 2024, and 81,312,168 shares at December 31, 2023, issued and outstanding	814	813
Additional paid-in capital	50,066	49,789
Retained earnings	711,549	706,784
Total stockholders’ equity	762,429	757,386
Total liabilities and stockholders’ equity	$ 993,019	$ 990,339