Note 2 - Long-Term Incentive Plans (Details) - Stock Option Activity	9 Months Ended
	Sep. 30, 2013
Stock Option Activity [Abstract]
Outstanding at January 1, 2013	4,294,273
Outstanding at September 30, 2013	4,093,159
Granted	60,000
Exercised	(57,241)
Forfeited and cancelled	(203,873)