Note 8 - Accounts Receivable (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss, Current	$ 10,000			$ 10,000
Total Transfer Capacity, Undivided Interests to Investors under Receivables Securitization Facility	$ 800,000
Receivables Securitization Facility, Duration (Year)	3 years
Value Outstanding, Undivided Interest Held by Investors Under Receivables Securitization Facility	$ 0		$ 100,000
Accounts Receivable, Supporting Undivided Investor Held Interest	1,600,000		$ 1,600,000
Interest Expense, Total	$ 336,000	$ 307,000
Receivables Securitization Facility, Maturity Date			Jul. 31, 2025
Asset-Backed Securities, Securitized Loans and Receivables [Member]
Accounts Receivable, from Securitization, Default or Dilution Ratio	1.00%
Interest Expense, Total	$ 3,000	$ 1,000
Maximum [Member]
Total Transfer Capacity, Undivided Interests to Investors under Receivables Securitization Facility	800,000
Other Assets [Member]
Accounts Receivable, Allowance for Credit Loss, Noncurrent	$ 60,000		$ 58,000