Note 9 - Geographic Information - Assets by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Revenue	$ 35,313	$ 36,473
Long-lived assets	100,897		$ 98,077
Total assets	120,911		122,437
UNITED STATES
Revenue	35,313	36,473
Long-lived assets	100,897		98,077
Total assets	120,721		122,232
CANADA
Revenue	0	$ 0
Long-lived assets	0		0
Total assets	$ 190		$ 205