Consolidated Condensed Balance Sheets (Unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 20,514	$ 5,306
Marketable securities		138
Receivables:
Trade, net	62,663	51,094
Other	4,872	12,968
Prepaid expenses and other	12,694	13,406
Deferred income taxes	4,473	4,794
Total current assets	105,216	87,706
Property and equipment:
Revenue equipment, buildings and land, office equipment and other	513,951	515,622
Accumulated depreciation	(151,925)	(143,563)
Net property and equipment	362,026	372,059
Other assets	570	543
TOTAL ASSETS	467,812	460,308
Current liabilities:
Checks issued in excess of cash balances		1,066
Accounts payable and accrued liabilities	36,212	30,524
Insurance and claims accruals	14,929	17,653
Current maturities of long-term debt		19,346
Total current liabilities	51,141	68,589
Deferred income taxes	103,537	95,815
Total liabilities	154,678	164,404
Marten Transport, Ltd. 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; 48,000,000 shares authorized; 21,984,597 shares at September 30, 2011, and 21,950,252 shares at December 31, 2010, issued and outstanding	220	220
Additional paid-in capital	79,659	78,428
Retained earnings	230,649	215,345
Total Marten Transport, Ltd. stockholders’ equity	310,528	293,993
Noncontrolling interest	2,606	1,911
Total stockholders’ equity	313,134	295,904
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 467,812	$ 460,308