Note 3 - Revenue Recognition

9 Months Ended

Sep. 30, 2024

Notes to Financial Statements

Revenue from Contract with Customer [Text Block]

Note 3.  Revenue Recognition

Disaggregation of Revenue

Revenue is classified based on the location where the product is manufactured. For additional information on the disaggregated revenues by geographical region, see Note 17, "Geographic Information."

Revenue is also classified by major product categories and is presented below (in thousands):

	Three months ended September 30,
			% of					% of
	2024		Revenue			2023		Revenue
Data Center	$	40,945		62.8	%	$	48,807		78.0	%
CATV		20,947		32.2	%		10,268		16.4	%
Telecom		2,798		4.3	%		3,074		5.0	%
FTTH		—		0.0	%		—		0.0	%
Other		461		0.7	%		398		0.6	%
Total Revenue	$	65,151		100.0	%	$	62,547		100.0	%

	Nine months ended September 30,
			% of					% of
	2024		Revenue			2023		Revenue
Data Center	$	104,283		69.9	%	$	96,731		61.5	%
CATV		35,501		23.8	%		47,391		30.1	%
Telecom		7,445		5.0	%		11,013		7.0	%
FTTH		—		0.0	%		57		0.1	%
Other		1,865		1.3	%		2,001		1.3	%
Total Revenue	$	149,094		100.0	%	$	157,193		100.0	%

Unearned Revenue

We record unearned revenues when cash payments are received or due in advance of our performance, including amounts which are refundable. Unearned revenues solely relate to statement of work with Microsoft regarding contract prices allocated to the performance obligations that are unsatisfied, or partially unsatisfied, as of the balance sheet dates. Unearned revenue balance as of  September 30, 2024 and  December 31, 2023 was $1.4 million and $1.8 million, respectively. For the three months ended September 30, 2024 and 2023, revenue recognized from the unearned revenue balance was $0.1 million and $1.9 million, respectively. For the nine months ended September 30, 2024 and 2023, revenue recognized from the unearned revenue balance was $0.4 million and $3.1 million, respectively. The contract with Microsoft does not fall under ASC 842, Lease Accounting. 

	Three months ended September 30,				Nine months ended September 30,
	2024		2023		2024		2023
Unearned revenue, beginning of period	$	1,570	$	11,720	$	1,803	$	3,000
Additional unearned revenue		—		2,724		—		12,608
Revenue recognized		131		1,947		364		3,111
Unearned revenue, end of period	$	1,439	$	12,497	$	1,439	$	12,497