Note 5 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue		$ 28,437	$ 22,922	$ 50,509	$ 49,184
Transferred at Point in Time [Member]
Revenue		26,429	19,774	46,540	42,409
Transferred over Time [Member]
Revenue		2,008	3,148	3,969	6,775
Connectivity Products [Member]
Revenue		25,049	18,523	43,055	40,112
Smart Sensing Products [Member]
Revenue		3,388	4,399	7,454	9,072
UNITED STATES
Revenue		1,365	1,748	3,903	4,100
Europe and Middle East [Member]
Revenue	[1]	7,442	2,084	8,954	4,893
Asia Pacific [Member]
Revenue	[2]	19,630	19,063	37,639	39,689
Other [Member]
Revenue		0	27	13	502
License [Member]
Revenue		17,278	13,551	28,692	31,799
License [Member] | Transferred at Point in Time [Member]
Revenue		15,270	10,403	24,723	25,024
License [Member] | Transferred over Time [Member]
Revenue		2,008	3,148	3,969	6,775
License [Member] | Connectivity Products [Member]
Revenue		16,256	11,743	26,323	27,667
License [Member] | Smart Sensing Products [Member]
Revenue		1,022	1,808	2,369	4,132
License [Member] | UNITED STATES
Revenue		428	337	811	1,039
License [Member] | Europe and Middle East [Member]
Revenue		6,244	1,631	6,845	3,581
License [Member] | Asia Pacific [Member]
Revenue		10,606	11,556	21,023	26,677
License [Member] | Other [Member]
Revenue		0	27	13	502
Royalty [Member]
Revenue		11,159	9,371	21,817	17,385
Royalty [Member] | Transferred at Point in Time [Member]
Revenue		11,159	9,371	21,817	17,385
Royalty [Member] | Transferred over Time [Member]
Revenue			0		0
Royalty [Member] | Connectivity Products [Member]
Revenue		8,793	6,780	16,732	12,445
Royalty [Member] | Smart Sensing Products [Member]
Revenue		2,366	2,591	5,085	4,940
Royalty [Member] | UNITED STATES
Revenue		937	1,411	3,092	3,061
Royalty [Member] | Europe and Middle East [Member]
Revenue		1,198	453	2,109	1,312
Royalty [Member] | Asia Pacific [Member]
Revenue		$ 9,024	7,507	$ 16,616	13,012
Royalty [Member] | Other [Member]
Revenue			$ 0		$ 0

[1] Finland

[2] China