Note 3 - Revenue Recognition - Revenue by Major Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue, net	$ 102,952	$ 43,270	$ 202,811	$ 83,943
Percent of Revenue	100.00%	100.00%	100.00%	100.00%
CATV [Member]
Revenue, net	$ 56,019	$ 5,818	$ 120,520	$ 14,554
Percent of Revenue	54.40%	13.40%	59.40%	17.30%
Data Center [Member]
Revenue, net	$ 44,791	$ 34,352	$ 76,841	$ 63,338
Percent of Revenue	43.50%	79.40%	37.90%	75.50%
Telecom [Member]
Revenue, net	$ 1,940	$ 2,379	$ 4,876	$ 4,648
Percent of Revenue	1.90%	5.50%	2.40%	5.50%
Product and Service, Other [Member]
Revenue, net	$ 202	$ 721	$ 574	$ 1,403
Percent of Revenue	0.20%	1.70%	0.30%	1.70%