Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 21,575,000	$ 337,000
Accounts receivable-net:
Trade, less current estimated credit loss of $4,319 and $3,482, respectively	103,517,000	77,731,000
Other	6,088,000	5,127,000
Inventories	1,349,000	1,345,000
Prepaid expenses and deposits	8,428,000	10,172,000
Marketable equity securities	36,130,000	27,941,000
Income taxes refundable	413,000	868,000
Total current assets	177,500,000	123,521,000
Property and equipment:
Land	19,719,000	18,486,000
Structures and improvements	33,292,000	32,275,000
Revenue equipment	518,791,000	592,476,000
Office furniture and equipment	11,235,000	10,439,000
Total property and equipment	583,037,000	653,676,000
Accumulated depreciation	(194,060,000)	(202,851,000)
Net property and equipment	388,977,000	450,825,000
Other assets	3,772,000	4,246,000
TOTAL ASSETS	570,249,000	578,592,000
Current liabilities:
Accounts payable	41,261,000	46,102,000
Accrued expenses and other liabilities	25,937,000	26,601,000
Current maturities of long-term debt	46,367,000	57,776,000
Total current liabilities	113,565,000	130,479,000
Long-term debt - less current portion	184,191,000	228,330,000
Deferred income taxes	83,868,000	68,883,000
Other long-term liabilities	499,000	919,000
Total liabilities	382,123,000	428,611,000
STOCKHOLDERS' EQUITY
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued	0	0
Common stock, $.01 par value, 40,000,000 shares authorized; 23,394,046 and 23,391,438 shares issued; 11,167,261 and 11,455,790 shares outstanding at September 30, 2021 and December 31, 2020, respectively	234,000	117,000
Additional paid-in capital	84,379,000	84,148,000
Treasury stock, at cost; 12,226,785 and 11,935,648 shares at September 30, 2021 and December 31, 2020, respectively	(169,946,000)	(159,118,000)
Retained earnings	273,459,000	224,834,000
Total stockholders’ equity	188,126,000	149,981,000
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 570,249,000	$ 578,592,000