Note 7 - Goodwill and Intangible Assets, Net (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Impairment of Intangible Assets, Finite-Lived		$ 3,556	$ 0	$ 0
Finite-Lived Intangible Assets, Gross, Total		22,661	22,661
Amortization of Intangible Assets, Total		2,724	2,710	$ 2,307
Amortization of Intangible Assets, Including Portion in Cost of Revenues		4,371	3,801
Immervision Technology [Member] | Operating Expense [Member]
Impairment of Intangible Assets, Finite-Lived		3,556
NB-IoT technologies [Member]
Finite-lived Intangible Assets Acquired	$ 2,800
Finite Lived Intangible Assets Acquired, Balance Not Received	600
Finite-Lived Intangible Assets, Gross, Total	$ 2,200	1,961	$ 1,961
Intangible Assets Expenditures Incurred but Not yet Paid		$ 210
Amortization of Intangible Assets, Total					$ 239