Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended	1 Months Ended
	Jun. 13, 2014	Dec. 31, 2014	May 31, 2014	Apr. 30, 2014	Nov. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Accounts receivable		$ 106,692				$ 70,047
Property and equipment		221,811				143,621
Goodwill		374,390				184,409	170,522
Broadcast licenses		1,023,580				838,982
Other non-current assets		3,443				3,289
Current liabilities		(80,022)				(63,085)
Other long-term liabilities		(952)				(827)
Deferred income tax liabilities		(292,679)				(225,407)
Hoak Acquisition [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Accounts receivable		10,722
Other current assets		509
Property and equipment		45,382
Goodwill		131,632
Broadcast licenses		91,958
Other intangible assets		35,386
Current liabilities		(3,544)
Deferred income tax liabilities		(12,188)
Total	299,900	299,857
SJL Acquisition [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Accounts receivable		7,132
Other current assets		1,946
Property and equipment		23,508
Goodwill		50,941
Broadcast licenses		86,685
Other intangible assets		10,091
Other non-current assets		253
Current liabilities		(4,936)
Other long-term liabilities		(379)
Deferred income tax liabilities		(43,712)
Total		131,529
KEVN Acquisition [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Cash		615
Accounts receivable		569
Other current assets		96
Property and equipment		3,888
Goodwill		2,717
Broadcast licenses		1,675
Other intangible assets		1,786
Other non-current assets		29
Current liabilities		(211)
Other long-term liabilities		(38)
Deferred income tax liabilities		(2,341)
Total		8,785	8,800
KNDX Acquisition [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Other current assets		39
Property and equipment		2,576
Goodwill		1,839
Broadcast licenses		500
Other intangible assets		2,584
Other non-current assets		15
Current liabilities		(36)
Other long-term liabilities		(17)
Total		7,500	7,500
Parker Acquisitions [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Accounts receivable		765
Other current assets		964
Property and equipment		722
Goodwill		1,932
Other intangible assets		3,163
Other non-current assets		16
Current liabilities		(826)
Other long-term liabilities		(5)
Total		6,731
WQCW Acquisition [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Other current assets		45
Property and equipment		991
Goodwill		802
Broadcast licenses		3,691
Other intangible assets		15
Current liabilities		(45)
Total		5,499		5,500
Helena Acquisition [Member]
Note 2 - Acquisitions (Details) - Preliminary Fair Value Estimates of Acquired Assets, Assumed Liabilities and Resulting Goodwill [Line Items]
Accounts receivable		14
Other current assets		49
Property and equipment		1,230
Goodwill		70
Broadcast licenses		146
Other intangible assets		431
Current liabilities		(90)
Total		$ 1,850			$ 1,900