Property, Equipment, and Depreciation	3 Months Ended
Property, Equipment, and Depreciation	Mar. 31, 2012
Property, Equipment and Depreciation [Abstract]
Property, Plant and Equipment Disclosure [Text Block]	Property, Equipment, and Depreciation Property and equipment are reported at cost, net of accumulated depreciation, while maintenance and repairs are charged to operations as incurred. Tires are capitalized separately from revenue equipment and are reported separately as “Prepaid Tires” in the consolidated balance sheet and amortized over two years. Depreciation expense of $0.2 million for the three months ended March 31, 2012 and 2011 has been included in communication and utilities in the consolidated statements of income. Depreciation for financial statement purposes is computed by the straight-line method for all assets other than tractors. The Company recognizes depreciation expense on tractors acquired subsequent to January 1, 2009, at 150% declining balance. At March 31, 2012 and March 31, 2011 100% and 72.7%, respectively of the Company's tractor fleet was depreciated based on the 150% declining balance method. Tractors are depreciated to salvage values of $15,000 while trailers are depreciated to salvage values of $4,000.

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

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