Note 13 - Segment Information - Assets by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue	$ 151,568	$ 147,954	$ 133,277
Long-lived assets	86,745	83,833	79,311
Total assets	130,461	157,540	133,423
UNITED STATES
Revenue	150,775	144,987	130,305
Long-lived assets	86,718	83,722	77,448
Total assets	130,151	153,879	128,319
CANADA
Revenue	793	2,967	2,972
Long-lived assets	27	111	1,863
Total assets	$ 310	$ 3,661	$ 5,104