Note 5 - Revenue (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss	$ 3,363		$ 3,032
Deferred Income Tax Assets, Net	3,347		2,771
Retained Earnings (Accumulated Deficit)	$ (87,073)		$ (86,302)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Accounts Receivable, Allowance for Credit Loss		$ (135,000)
Deferred Income Tax Assets, Net		34,000
Retained Earnings (Accumulated Deficit)		$ (101,000)