Note 11 - Subsequent Event (Details) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	May 04, 2015
Note 11 - Subsequent Event (Details) [Line Items]
Payments to Acquire Businesses, Gross	$ 27,849,000	$ 143,050,000
Subsequent Event [Member] | Yancey Truck Centers, LLC [Member]
Note 11 - Subsequent Event (Details) [Line Items]
Payments to Acquire Businesses, Gross			30,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Real Estate			$ 7,800,000