Note 4 - Common Stock (Details) - Common Stock Activity	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Exercise of stock options	107,000
Voting Common Stock [Member] | Outstanding Warrants Converted into Voting Common Stock [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Conversion of warrants/other		12,390,535
Voting Common Stock [Member] | Performance Accelerated Restricted Stock Plan (PARS) [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Performance accelerated restricted stock	(69,086)	(2,384)
Voting Common Stock [Member] | Young Merger [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Common stock, merger		27,363,510
Voting Common Stock [Member] | LIN Merger [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Common stock, merger	41,197,003
Voting Common Stock [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Balance	129,931,812	87,695,495	47,802,816	53,062,528
Directors deferred compensation plan	172,557
Conversion of warrants/other	160	17	12,747,077
Exercise of stock options	106,798	141,001
Conversion of common stock	828,885		1,039,668
Repurchase of securities			(19,046,457)
Nonvoting Common Stock [Member] | Young Merger [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Common stock, merger		828,885
Nonvoting Common Stock [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Balance		828,885		1,469,271
Conversion of common stock	(828,885)		(1,039,668)
Repurchase of securities			(429,603)
Performance Accelerated Restricted Stock Plan (PARS) [Member]
Note 4 - Common Stock (Details) - Common Stock Activity [Line Items]
Performance accelerated restricted stock	(134,000)