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Note 5 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Treasury Stock by Class [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

Schedule of Dividends Payable [Table Text Block]

	Quarter Ended March 31, 2013		Quarter Ended March 31, 2012
Dividends Declared (in thousands)	$	6,562		-
Dividend per share	$	0.25		-

- Definition

Tabular disclosure of an entity's treasury stock, including the average cost per share, carrying basis for each class of treasury stock, description of share repurchase program authorized by an entity's board of directors, the number of shares repurchased, the cost of the shares repurchased, the remaining maximum dollar value of shares available for repurchase under the program, the treatment of the purchase price in excess of the current market value, number of shares held for each class of treasury stock, and other information necessary to a fair presentation.

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