Note 10 - Contract Assets and Liabilities 1 (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Mar. 31, 2020
Contract with Customer, Receivable, after Allowance for Credit Loss, Total	$ 200		$ 300
Contract with Customer, Liability, Current	518		217
License [Member]
Contract with Customer, Liability, Noncurrent	1,533		$ 1,633	$ 2,000
Contract with Customer, Liability, Revenue Recognized	100	$ 100
Deposits held in Escrow for Properties Held for Sale [Member]
Contract with Customer, Liability, Current	$ 200