Note 5 - Accounts Receivable (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lessor, Sales-type Lease, Term of Contract (Month)	36 months
Sales-type and Direct Financing Leases, Lease Receivable	$ 32,809	$ 40,377
Accounts Receivable, Allowance for Credit Loss	14,207	$ 13,619	$ 11,997
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Accounts Receivable, Allowance for Credit Loss	$ 500