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Note 17 - Net Income Per Share of Class A and Class B Common Stock (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Year Ended December 31,		2014								2013								2012
Basic EPS		Class A				Class B				Class A				Class B				Class A				Class B
Numerator:
Income from continuing operations applicable to common stockholders		$	122,246			$	13,294			$	94,532			$	10,682			$	69,069			$	10,326
Distributed income applicable to common stockholders			(14,367	)			(1,562	)			(9,061	)			(1,024	)			(10,497	)			(1,569	)
Basic undistributed income from continuing operations applicable to common stockholders		$	107,879			$	11,732			$	85,471			$	9,658			$	58,572			$	8,757
Denominator:
Weighted average number of shares out-standing used to calculate basic income per share			23,559				2,562				23,185				2,620				22,354				3,342
Basic income from continuing operations per share applicable to common stockholders		$	5.19			$	5.19			$	4.08			$	4.08			$	3.09			$	3.09
Basic distributed income per share applicable to common stockholders			(0.61	)			(061	)			(0.39	)			(0.39	)			(0.47	)			(0.47	)
Basic undistributed income from continuing operations per share applicable to common stockholders		$	4.58			$	4.58			$	3.69			$	3.69			$	2.62			$	2.62

Year Ended December 31,		2014								2013								2012
Diluted EPS		Class A				Class B				Class A				Class B				Class A				Class B
Numerator:
Distributed income applicable to common stockholders		$	14,367			$	1,562			$	9,061			$	1,024			$	10,497			$	1,569
Reallocation of distributed income as a result of conversion of dilutive stock options			15				(15	)			15				(15	)			28				(28	)
Reallocation of distributed income due to conversion of Class B to Class A			1,547				-				1,009				-				1,541				-
Diluted distributed income applicable to common stockholders		$	15,929			$	1,547			$	10,085			$	1,009			$	12,066			$	1,541
Undistributed income from continuing operations applicable to common stockholders		$	107,879			$	11,732			$	85,471			$	9,658			$	58,572			$	8,757
Reallocation of undistributed income as a result of conversion of dilutive stock options			116				(116	)			142				(142	)			159				(159	)
Reallocation of undistributed income due to conversion of Class B to Class A			11,616				-				9,516				-				8,598				-
Diluted undistributed income from continuing operations applicable to common stockholders		$	119,611			$	11,616			$	95,129			$	9,516			$	67,329			$	8,598

Denominator:
Weighted average number of shares outstanding used to calculate basic income per share			23,559				2,562				23,185				2,620				22,354				3,342
Weighted average number of shares from stock options			261				-				386				-				474				-
Conversion of Class B to Class A			2,562				-				2,620				-				3,342				-
Weighted average number of shares outstanding used to calculate diluted income per share			26,382				2,562				26,191				2,620				26,170				3,342

Year Ended December 31,		2014								2013								2012
Diluted EPS		Class A				Class B				Class A				Class B				Class A				Class B
Diluted income from continuing operations per share available to common stockholders		$	5.14			$	5.14			$	4.02			$	4.02			$	3.03			$	3.03
Diluted distributed income from continuing operations per share applicable to common stockholders			(0.61	)			(0.61	)			(0.39	)			(0.39	)			(0.47	)			(0.47	)
Diluted undistributed income from continuing operations per share applicable to common stockholders		$	4.53			$	4.53			$	3.63			$	3.63			$	2.56			$	2.56
Antidilutive Securities:
Shares issuable pursuant to stock options not included since they were antidilutive			13				-				16				-				45				-