Note 10 - Earnings Per Share - Schedule of Computation of Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator:
Net loss	$ (2,898)	$ (3,190)	$ (3,129)	$ (1,942)	$ (6,088)	$ (5,071)
Plus: Net loss attributable to noncontrolling interest	270		399		517	664
Net loss attributable to common stockholders	$ (2,628)		$ (2,730)		$ (5,571)	$ (4,407)
Denominator
Basic weighted-average common shares	32,044		24,831		32,005	23,658
Diluted weighted-average common shares	32,044		24,831		32,005	23,658
Net loss per common share- basic and diluted	$ (0.08)		$ (0.11)		$ (0.17)	$ (0.19)