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Amount classified as accounts payable attributable to disposal group held for sale or disposed of.

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Note 15 - Acquisitions (Details Textual) - USD ($)			1 Months Ended	12 Months Ended
Note 15 - Acquisitions (Details Textual) - USD ($)	Jun. 25, 2014	Jan. 13, 2014	Sep. 28, 2015	Dec. 31, 2015	Dec. 31, 2014	Jul. 27, 2015	May. 04, 2015	Feb. 09, 2015	Dec. 08, 2014	Nov. 03, 2014	Jul. 02, 2014
Peterbilt in Charlotte [Member]
Proceeds from Sales of Business, Affiliate and Productive Assets			$ 6,400,000
Disposal Group, Including Discontinued Operation, Accounts Payable			5,900,000
Peterbilt of Las Vegas [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			$ 3,400,000
Dallas Truck Center, Inc. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net						$ 3,257,000
Yancey Truck Centers LLC [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net							$ 30,057,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				15 years
Effingham Truck Sales Inc. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net								$ 25,261,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				15 years
North Florida Truck Parts, Inc. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net									$ 4,159,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					15 years
House of Trucks, Inc. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net										$ 6,874,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					15 years
Truck Parts Depot, Inc. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net											$ 500,000
CIT Inc. [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		$ 146,563,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					15 years
Business Combination, Consideration Transferred		$ 146,600,000
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		83,091
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned		$ 2,000,000
CCTTS [Member]
Equity Method Investment, Ownership Percentage	50.00%
Payments to Acquire Equity Method Investments	$ 2,200,000