Note 14 - Net Loss Per Share - Computation of Net Income(Loss) Allocated to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Net loss	$ (6,220)	$ (59,854)
Less loss allocated to RSUs	94	907
Net loss allocated to common shareholders	$ (6,126)	$ (58,947)
Weighted average number of common shares outstanding (in shares)	30,446	30,253
Basic and diluted (in dollars per share)	$ (0.20)	$ (1.95)