Consolidated Condensed Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
OPERATING REVENUE	$ 156,348	$ 128,674	$ 445,339	$ 380,348
OPERATING EXPENSES (INCOME):
Salaries, wages and benefits	37,775	32,767	108,287	97,153
Purchased transportation	31,354	26,275	89,362	80,380
Fuel and fuel taxes	40,590	28,558	115,845	84,318
Supplies and maintenance	11,030	8,276	30,466	25,883
Depreciation	14,758	12,884	42,358	38,533
Operating taxes and licenses	1,644	1,505	4,577	4,584
Insurance and claims	4,617	4,413	13,330	12,249
Communications and utilities	1,168	1,143	3,396	3,010
Gain on disposition of revenue equipment	(1,084)	(184)	(2,819)	(812)
Other	3,385	3,051	10,458	8,837
Total operating expenses	145,237	118,688	415,260	354,135
OPERATING INCOME	11,111	9,986	30,079	26,213
NET INTEREST (INCOME) EXPENSE	(18)	44	(6)	(36)
INCOME BEFORE INCOME TAXES	11,129	9,942	30,085	26,249
Less: Income before income taxes attributable to noncontrolling interest	318	308	708	365
INCOME BEFORE INCOME TAXES ATTRIBUTABLE TO MARTEN TRANSPORT, LTD.	10,811	9,634	29,377	25,884
PROVISION FOR INCOME TAXES	4,478	4,152	12,755	11,352
NET INCOME	$ 6,333	$ 5,482	$ 16,622	$ 14,532
BASIC EARNINGS PER COMMON SHARE (in Dollars per share)	$ 0.29	$ 0.25	$ 0.76	$ 0.66
DILUTED EARNINGS PER COMMON SHARE (in Dollars per share)	$ 0.29	$ 0.25	$ 0.75	$ 0.66
DIVIDENDS PAID PER COMMON SHARE (in Dollars per share)	$ 0.02	$ 0.02	$ 0.06	$ 0.02