Note 1 - Summary of Significant Accounting Policies (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Self-insurance Retention Levels, Workers' Compensation Claims Per Occurrence	$ 0.5								$ 0.5
Self-insurance Retention Levels, Cargo Loss and Damage Claims Per Occurrence	0.05								0.05
Self-insurance Retention Levels, Bodily Injury and Property Damage Claims Per Occurrence	1.0								1.0
Self-insurance Retention Levels, Medical Benefits Per Plan Participant	0.25								0.25
Liability for Claims and Claims Adjustment Expense	6.0								6.0
Earnings Per Share, Diluted (in Dollars per share)	$ (0.45)	$ (0.06)	$ (0.14)	$ (0.24)	$ (0.31)	$ (0.59)	$ (0.34)	$ (0.47)	$ (0.88)	$ (1.71)
Top Ten Customers [Member] | Customer Concentration Risk [Member] | Sales Revenue, Services, Net [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Concentration Risk, Percentage									27.00%	29.00%
Insurance Claims [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Liability for Claims and Claims Adjustment Expense	4.0								4.0
Building and Building Improvements [Member] | Minimum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life									5 years
Building and Building Improvements [Member] | Maximum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life									39 years 6 months
Transportation Equipment [Member] | Minimum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life									4 years
Transportation Equipment [Member] | Maximum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life									14 years
Other Machinery and Equipment [Member] | Minimum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life									3 years
Other Machinery and Equipment [Member] | Maximum [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Useful Life									20 years
Long-term Claims Liability Adjustment [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Earnings Per Share, Diluted (in Dollars per share)	$ (0.35)
Salaries, Wages and Employee Benefits Expense [Member]
Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]
Liability for Claims and Claims Adjustment Expense	$ 2.0								$ 2.0