Note 8 - Stock Repurchase Program (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Schedule of Repurchase Agreements [Table Text Block]

	Shares Repurchased		Average Price Per Share		Total Amount
Cumulative balance at January 1, 2014		664	$	31.06	$	20,615
Repurchases		1,051	$	39.19		41,198
Cumulative balance at December 31, 2014		1,715	$	36.04	$	61,813