Note 5 - Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2013

Stockholders' Equity Note [Abstract]

Class of Treasury Stock [Table Text Block]

Repurchase of Equity Securities
Period	Total Number of Common Shares Repurchased		Average Price Paid Per Common Share		Total Number of Common Shares Purchased as Part of Publicly Announced Plans or Programs		Maximum Number (or Approximate Dollar Value) of Common Shares that May Yet Be Purchased Under the Plans or Programs
							(in thousands)
January 1 - 31		215,746	$	34.65		251,146	$	91,319
February 1 - 28		102,473	$	37.73		353,619	$	87,450
March 1 - 31		20,000	$	35.27		373,619	$	86,745
April 1 - 30		-		-		-	$	86,745
May 1 - 31		-		-		-	$	86,745
June 1 - 30		-		-		-	$	86,745
July 1 - 31		-		-		-	$	86,745
August 1 - 31		-		-		-	$	86,745
September 1 - 30		-		-		-	$	86,745

Schedule of Dividends Payable [Table Text Block]

	Nine Months Ended September 30, 2013		Nine Months Ended September 30, 2012		Three Months Ended September 30, 2013		Three Months Ended September 30, 2012
Dividends Declared (in thousands)	$	19,821	$	-	$	6,634	$	-
Dividend per share	$	0.75	$	-	$	0.25	$	-