Consolidated Statements of Income (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
REVENUE $ 283,491,574 $ 247,670,217
COSTS AND EXPENSES:    
Transportation costs 230,239,858 205,460,091
Selling, general, and administrative expenses 44,027,813 35,272,320
Depreciation and amortization 3,873,137 2,956,104
INCOME FROM OPERATIONS 5,350,766 3,981,702
Interest expense (37,968) 0
Other expense (52,021) (54,927)
OTHER EXPENSE, NET (89,989) (54,927)
INCOME BEFORE PROVISION FOR INCOME TAXES 5,260,777 3,926,775
INCOME TAX EXPENSE (1,933,000) (1,496,816)
NET INCOME $ 3,327,777 $ 2,429,959
Basic net income per share (USD per share) $ 0.14 $ 0.11
Diluted net income per share (USD per share) $ 0.14 $ 0.10