Note 13 - Stockholders' Equity - Non-vested Stock Options, SARs and RSUs (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Non-vested (in shares) | shares	1,127
Non-vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.09
Granted (in shares) | shares	666
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 12.44
Vested (in shares) | shares	(562)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.07
Forfeited (in shares) | shares	(100)
Forfeited, weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.60
Non-vested (in shares) | shares	1,131
Non-vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 11.03