Note 17 - Quarterly Financial Summary (Unaudited) - Summary of Selected Financial Results of Operations by Quarter (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Revenues	$ 40,060	$ 44,843	$ 50,012	$ 41,844	$ 26,011	$ 40,389	$ 46,491	$ 32,728	$ 176,759	$ 145,619
Gross profit	2,556	3,748	2,394	2,012	957	2,074	2,198	282	10,710	5,511
Operating loss	(2,102)	(520)	(1,912)	(2,073)	(3,975)	(1,997)	(2,311)	(4,311)	$ (6,607)	$ (12,594)
Net loss	$ (2,851)	$ (1,772)	$ (2,703)	$ (2,404)	$ (4,090)	$ (2,105)	$ 10,252	$ (1,210)
Basic (in dollars per share)	$ (0.14)	$ (0.09)	$ (0.13)	$ (0.12)	$ (0.21)	$ (0.11)	$ 0.55	$ (0.07)
Diluted (in dollars per share)	$ (0.14)	$ (0.09)	$ (0.13)	$ (0.12)	$ (0.21)	$ (0.11)	$ 0.53	$ (0.07)