Note 1 - Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Principal Transactions Revenue [Table Text Block]

	Year Ended December 31,
	2012			2011			2010
Trade barter revenue	$	1,248		$	1,529		$	1,481
Trade barter expense		(1,267	)		(1,421	)		(1,354	)
Net trade barter (loss) income	$	(19	)	$	108		$	127

Property, Plant and Equipment [Table Text Block]

	December 31,						Estimated Useful Lives
	2012			2011			(in years)
Property and equipment:
Land	$	24,383		$	23,451
Buildings and improvements		55,709			53,322		7	to	40
Equipment		313,761			308,454		3	to	20
		393,853			385,227
Accumulated depreciation		(258,715	)		(248,128	)
Total property and equipment, net	$	135,138		$	137,099

Schedule of Weighted Average Number of Shares [Table Text Block]

	Year Ended December 31,
	2012		2011		2010
Weighted-average shares outstanding – basic		57,170		57,117		54,322
Weighted-average shares underlying stock options and restricted shares		92		1		2
Weighted-average shares outstanding - diluted		57,262		57,118		54,324

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	December 31,
	2012			2011
Accumulated balances of items included in accumulated other comprehensive loss:
Increase in pension liability	$	(33,065	)	$	(26,889	)
Income tax benefit		(12,895	)		(10,487	)
Accumulated other comprehensive loss	$	(20,170	)	$	(16,402	)