Note 2 - Long-Term Incentive Plans (Details) - Summary of the Company’s Stock Options	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2014
Summary of the Company’s Stock Options [Abstract]
Outstanding at January 1, 2014		5,994,788
Granted	0	866,250
Exercised		(473,789)
Forfeited and cancelled		(47,870)
Outstanding at June 30, 2014		6,339,379