Note 7 - Contract Assets and Liabilities 1 (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Mar. 31, 2020
Contract with Customer, Receivable, after Allowance for Credit Loss, Total	$ 400		$ 300
Club Membership [Member]
Contract with Customer, Liability, Revenue Recognized	400	$ 400
License [Member]
Contract with Customer, Liability, Revenue Recognized	100	$ 100
Contract with Customer, Liability, Noncurrent	$ 1,433		$ 1,500	$ 2,000