Note 8 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2014

Stockholders' Equity Note [Abstract]

Schedule of Stockholders Equity [Table Text Block]

						Accumulated Other				Non-			Total
	Common Stock					Comprehensive		Retained		Controlling			Stockholders'
(In thousands)	Voting			Non-Voting		Income		Earnings		Interest			Equity
Balance at December 31, 2013	$	557,754		$	12,483	$	5,668	$	161,076	$	(1,744	)	$	735,237
Net income		-			-		-		5,385		54			5,439
Exercise of stock options		394			-		-		-		-			394
Stock-based compensation		584			-		-		-		-			584
Other		(19	)		-		-		-		-			(19	)
Balance at March 31, 2014	$	558,713		$	12,483	$	5,668	$	166,461	$	(1,690	)	$	741,635

					Accumulated Other					Non-			Total
	Common Stock				Comprehensive			Retained		Controlling			Stockholders'
(In thousands)	Voting		Non-Voting		Loss			Earnings		Interest			Equity
Balance at December 31, 2012	$	133,000	$	-	$	(987	)	$	154,936	$	42		$	286,991
Net income (loss)		-		-		-			3,114		(95	)		3,019
Balance at March 31, 2013	$	133,000	$	-	$	(987	)	$	158,050	$	(53	)	$	290,010