Note 10 - Earnings Per Share - Schedule of Computation of Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net loss	$ (3,129)	$ (1,942)	$ (2,483)	$ (2,436)	$ (5,071)	$ (4,919)
Plus: Net loss attributable to noncontrolling interest	399		369		664	730
Net loss attributable to common stockholders	$ (2,730)		$ (2,114)		$ (4,407)	$ (4,189)
Weighted average shares outstanding
Basic weighted-average common shares	24,831		21,587		23,658	21,587
Diluted weighted-average common shares	24,831		21,587		23,658	21,587
Net loss per common share- basic and diluted	$ (0.11)		$ (0.10)		$ (0.19)	$ (0.19)