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Note 5 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues	$ 25,678	$ 28,437	$ 49,923	$ 50,509
Transferred at Point in Time [Member]
Revenues	21,412	26,429	42,005	46,540
Transferred over Time [Member]
Revenues	4,266	2,008	7,918	3,969
Connectivity Products [Member]
Revenues	16,277	25,049	36,722	43,055
Smart Sensing Products [Member]
Revenues	9,401	3,388	13,201	7,454
UNITED STATES
Revenues	5,544	1,365	9,163	3,903
Europe and Middle East [Member]
Revenues	2,010	7,442	3,494	8,954
Asia Pacific [Member]
Revenues	18,124	19,630	37,266	37,639
Other [Member]
Revenues	0	0	0	13
License [Member]
Revenues	15,022	17,278	30,064	28,692
License [Member] \| Transferred at Point in Time [Member]
Revenues	10,756	15,270	22,146	24,723
License [Member] \| Transferred over Time [Member]
Revenues	4,266	2,008	7,918	3,969
License [Member] \| Connectivity Products [Member]
Revenues	7,999	16,256	21,512	26,323
License [Member] \| Smart Sensing Products [Member]
Revenues	7,023	1,022	8,552	2,369
License [Member] \| UNITED STATES
Revenues	4,275	428	6,690	811
License [Member] \| Europe and Middle East [Member]
Revenues	1,210	6,244	1,716	6,845
License [Member] \| Asia Pacific [Member]
Revenues	9,537	10,606	21,658	21,023
License [Member] \| Other [Member]
Revenues		0		13
Royalty [Member]
Revenues	10,656	11,159	19,859	21,817
Royalty [Member] \| Transferred at Point in Time [Member]
Revenues	10,656	11,159	19,859	21,817
Royalty [Member] \| Connectivity Products [Member]
Revenues	8,278	8,793	15,210	16,732
Royalty [Member] \| Smart Sensing Products [Member]
Revenues	2,378	2,366	4,649	5,085
Royalty [Member] \| UNITED STATES
Revenues	1,269	937	2,473	3,092
Royalty [Member] \| Europe and Middle East [Member]
Revenues	800	1,198	1,778	2,109
Royalty [Member] \| Asia Pacific [Member]
Revenues	$ 8,587	$ 9,024	$ 15,608	$ 16,616