Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill (USD $) In Thousands, unless otherwise specified			9 Months Ended		0 Months Ended	9 Months Ended		1 Months Ended	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 KAQY Acquisition [Member]	Sep. 30, 2014 SJL Acquisition [Member]	Jun. 13, 2014 Hoak Acquisition [Member]	Sep. 30, 2014 Hoak Acquisition [Member]	Sep. 30, 2014 KNDX Acquisition [Member]	May 31, 2014 KEVN Acquisition [Member]	Sep. 30, 2014 KEVN Acquisition [Member]	Sep. 30, 2014 WQCW Acquisition [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Cash			$ 526						$ 615
Accounts receivable	95,934	70,047	159	7,132		10,732			568
Other current assets			54	1,972		511	39		96	45
Property and equipment	217,146	143,621	515	23,518		45,382	2,576		3,888	991
Goodwill	371,995	184,409		50,753		131,531	1,839		2,715	802
Broadcast licenses	1,023,491	838,982		86,685		91,958	500		1,675	3,691
Other intangible assets			1,199	10,091		35,386	2,584		1,786	15
Other non-current assets	3,956	3,289	16	329			15		29
Current liabilities	(113,712)	(63,085)	(712)	(5,111)		(3,595)	(36)		(216)	(45)
Other long-term liabilities	(930)	(827)	(4)	(379)			(17)		(32)
Deferred income tax liabilities	(293,488)	(225,407)		(43,461)		(12,135)			(2,339)
Total			$ 1,753	$ 131,529	$ 290,800	$ 299,770	$ 7,500	$ 7,800	$ 8,785	$ 5,499