Note 3 - Variable Interest Entities (Details) - Carrying Amounts and Classification of Assets and Liabilities of Shield Stations (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 26,875		$ 71,618		$ 16,919	$ 24,244
Trade accounts receivable (less allowance for doubtful accounts 2014 - $66; 2013 - $105)	106,117		110,283
Prepaid expenses and other current assets	13,973		13,889
Total current assets	155,922		203,296
Property and equipment, net	276,668		285,467
Other assets, net	38,366		35,477
Definite lived intangible assets, net	249,927		239,642
Goodwill	561,832		541,475
Total assets	1,908,553	[1]	1,921,368	[1]
Current liabilities
Other accrued expenses and other current liabilities	44,922		42,656
Current installments of long-term debt	2,400		11,217
Total current liabilities	98,184		79,992
Long-term debt	903,800		905,783
Total liabilities	1,136,926	[2]	1,186,131	[2]
Shield Stations [Member]
Current assets
Cash and cash equivalents	1,047		4,110
Trade accounts receivable (less allowance for doubtful accounts 2014 - $66; 2013 - $105)	3,342		3,831
Prepaid expenses and other current assets	882		671
Total current assets	5,271		8,612
Property and equipment, net	2,088		2,996
Other assets, net	1,440		697
Definite lived intangible assets, net	3,170		3,400
Broadcast licenses	22,400		22,400
Goodwill	2,730		2,730
Total assets	37,099		40,835
Current liabilities
Trade accounts payable	29
Other accrued expenses and other current liabilities	2,581		2,180
Current installments of long-term debt	2,400		2,400
Total current liabilities	5,010		4,580
Long-term debt	27,800		29,600
Other liabilities	5,419		8,399
Total liabilities	$ 38,229		$ 42,579

[1] Consolidated assets as of September 30, 2014 and December 31, 2013, include total assets of variable interest entities (VIEs) of $37.1 million and $41.1 million, respectively, which can only be used to settle the obligations of the VIEs. See Note 1.

[2] Consolidated liabilities as of September 30, 2014, and December 31, 2013, include total liabilities of VIEs of $8.0 million and $10.6 million, respectively, for which the creditors of the VIEs have no recourse to the Company. See Note 1.