Note 10 - Changes in Goodwill and Other Intangible Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Broadcast Licenses [Member]
Broadcast licenses	$ 1,114,626,000	$ 1,023,580,000
Broadcast licenses	91,192,000	184,598,000
Broadcast licenses	(146,000)	0
Broadcast licenses	1,114,626,000	1,023,580,000
Goodwill	423,236,000	374,390,000
Goodwill	48,916,000	189,981,000
Goodwill	(70,000)	0
Broadcast licenses	1,114,626,000	1,023,580,000
Definite-lived intangible assets	53,280,000	47,802,000
Finite-lived Intangible Assets Acquired	17,845,000	53,455,000
Definite-lived intangible assets	(385,000)	0
Definite-lived intangible assets	(11,982,000)	(8,297,000)
Total intangible assets net of accumulated amortization	1,591,142,000	1,445,772,000
Total intangible assets net of accumulated amortization	157,953,000	428,034,000
Total intangible assets net of accumulated amortization	(601,000)	0
Broadcast licenses	1,114,626,000	1,023,580,000
Definite-lived intangible assets	53,280,000	47,802,000
Total intangible assets net of accumulated amortization	$ 1,591,142,000	$ 1,445,772,000