Note 2 - Mergers and Acquisitions (Details) - Fair Value of Acquired Assets and Assumed Liabilities, WHTM Acquisition (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Note 2 - Mergers and Acquisitions (Details) - Fair Value of Acquired Assets and Assumed Liabilities, WHTM Acquisition [Line Items]
Goodwill	$ 561,832	$ 541,475
Acquisition of WHTM-TV [Member]
Note 2 - Mergers and Acquisitions (Details) - Fair Value of Acquired Assets and Assumed Liabilities, WHTM Acquisition [Line Items]
Property and equipment	3,517
Broadcast licenses	31,200
Definite-lived intangibles	28,300
Goodwill	20,357
Other assets	380
Other liabilities	(354)
Total	$ 83,400