Note 20 - Stock Option Activity (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Stock Option Activity [Abstract]
Shares Under Option, Outstanding | shares	1,520,795
Shares Under Option, Granted | shares	824,540
Shares Under Option, Exercised | shares	5,797
Shares Under Option, Forfeited | shares	125,079
Shares Under Option, Outstanding | shares	2,214,459
Shares Under Option, Exercisable | shares	717,095
Shares Under Option, Expected to vest | shares	1,497,364
Weighted Average Exercise Price Per Share, Outstanding | $ / shares	$ 18.89
Weighted Average Exercise Price Per Share, Granted | $ / shares	13.84
Weighted Average Exercise Price Per Share, Exercised | $ / shares	13.76
Weighted Average Exercise Price Per Share, Forfeited | $ / shares	17.47
Weighted Average Exercise Price Per Share, Outstanding | $ / shares	17.10
Weighted Average Exercise Price Per Share, Exercisable | $ / shares	20.28
Weighted Average Exercise Price Per Share, Expected to vest | $ / shares	$ 15.58
Weighted Average Remaining Contractual Life, Outstanding	5 years 8 months 1 day
Weighted Average Remaining Contractual Life, Exercisable	5 years 4 days
Weighted Average Remaining Contractual Life, Expected to vest	5 years 11 months 27 days
Aggregate Intrinsic Value, Outstanding | $	$ 2
Aggregate Intrinsic Value, Expected to vest | $	$ 2