Consolidated Condensed Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 68,067	$ 80,600
Trade, net	117,820	120,702
Other	11,695	7,218
Prepaid expenses and other	27,004	27,320
Total current assets	224,586	235,840
Property and equipment:
Revenue equipment, buildings and land, office equipment and other	1,129,415	1,074,832
Accumulated depreciation	(358,414)	(346,665)
Net property and equipment	771,001	728,167
Other noncurrent assets	1,617	1,672
Total assets	997,204	965,679
Current liabilities:
Accounts payable	42,042	37,299
Insurance and claims accruals	46,282	45,747
Accrued and other current liabilities	33,320	41,264
Total current liabilities	121,644	124,310
Deferred income taxes	125,887	137,041
Noncurrent operating lease liabilities	316	409
Total liabilities	247,847	261,760
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; 81,308,968 shares at June 30, 2023, and 81,115,132 shares at December 31, 2022, issued and outstanding	813	811
Additional paid-in capital	49,280	47,188
Retained earnings	699,264	655,920
Total stockholders’ equity	749,357	703,919
Total liabilities and stockholders’ equity	$ 997,204	$ 965,679