Note 13 - Segment Reporting - Summary of Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Balance at beginning of period	$ 541	$ 222
Charged to costs and expenses	195	319
Write-offs during period	0	0
Balance at end of period	$ 736	$ 541