Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Property Plant and Equipment, Estimated Useful Lives [Table Text Block]

Buildings and improvements (in years)	5	to	40
Service equipment (in years)	5	to	15
Furniture, office equipment, signs and fixtures (in years)	3	to	10

Advertising Expense, and Cooperative Advertising Credits [Table Text Block]

Year Ended December 31,	2016			2015			2014
Advertising expense, gross	$	101,656		$	89,736		$	62,933
Manufacturer cooperative advertising credits		(20,293	)		(19,801	)		(16,281	)
Advertising expense, net	$	81,363		$	69,935		$	46,652