Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 325	$ 318
Accounts receivable-net:
Trade, less current estimated credit loss of $3,191 and $2,952, respectively	66,090	61,784
Other	4,278	3,769
Inventories	1,220	1,327
Prepaid expenses and deposits	9,093	8,669
Marketable equity securities	23,207	29,521
Income taxes refundable	807	504
Total current assets	105,020	105,892
Property and equipment:
Land	16,086	7,246
Structures and improvements	31,198	20,204
Revenue equipment	528,410	524,527
Office furniture and equipment	11,470	11,185
Total property and equipment	587,164	563,162
Accumulated depreciation	(184,316)	(175,887)
Net property and equipment	402,848	387,275
Other assets	4,617	4,842
TOTAL ASSETS	512,485	498,009
Current liabilities:
Accounts payable	24,220	16,597
Accrued expenses and other liabilities	42,042	40,610
Current maturities of long-term debt	59,731	67,637
Total current liabilities	125,993	124,844
Long-term debt-less current portion	189,469	174,187
Deferred income taxes	63,024	63,522
Other long-term liabilities	1,344	1,481
Total liabilities	379,830	364,034
SHAREHOLDERS' EQUITY
Preferred stock, $.01 par value, 10,000,000 shares authorized; none issued
Common stock, $.01 par value, 40,000,000 shares authorized; 11,658,768 and 11,656,160 shares issued; 5,742,330 and 5,748,897 shares outstanding at March 31, 2020 and December 31, 2019, respectively	117	117
Additional paid-in capital	83,993	83,688
Treasury stock, at cost; 5,916,438 and 5,907,263 shares at March 31, 2020 and December 31, 2019, respectively	(157,158)	(156,837)
Retained earnings	205,703	207,007
Total shareholders’ equity	132,655	133,975
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 512,485	$ 498,009