Note 13 - Income (Loss) Per Share - Computation of Net Income(Loss) Allocated to Common Shareholders (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net loss	$ 1,923	$ (3,723)	$ (1,483)	$ (67)
Less loss (income) allocated to RSUs	(28)	93	23	0
Net income (loss) allocated to common shareholders	$ 1,895	$ (3,630)	$ (1,460)	$ (67)