Note 8 - Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 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		-			-			-		25,566		614			26,180
Conversion of non-voting to voting common stock		6,305			(6,305	)		-		-		-			-
Exercise of stock options		483			-			-		-		-			483
Performance accelerated restricted stock		(92	)		-			-		-		-			(92	)
Director deferred stock units		7,361			-			-		-		-			7,361
Stock-based compensation		2,523			-			-		-		-			2,523
Other		(65	)		-			-		-		-			(65	)
Balance at September 30, 2014	$	574,269		$	6,178		$	5,668	$	186,642	$	(1,130	)	$	771,627

					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)		-		-		-			11,297		(694	)		10,603
Balance at September 30, 2013	$	133,000	$	-	$	(987	)	$	166,233	$	(652	)	$	297,594