Revenue Disaggregation

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Revenue Disaggregation

Note 4. Revenue Disaggregation

The Company’s disaggregated revenues are comprised of the following (in thousands):

	Year Ended
Category	December 31, 2023		December 31, 2022
Primary Geographical Markets
North America	$	11,960	$	7,317
Europe		9,250		9,907
Middle East		15,550		12,520
Rest of the World		1,066		511
Total revenue	$	37,826	$	30,255
Major Goods
RF/microwave filters	$	9,196	$	5,070
Detector logarithmic video amplifiers		1,703		1,060
Power supply units and systems		8,975		11,605
Healthcare diagnostic systems		3,956		4,073
Defense systems		13,996		8,447
Total revenue	$	37,826	$	30,255
Timing of Revenue Recognition
Goods transferred at a point in time	$	20,151	$	18,430
Services transferred over time		17,675		11,825
Revenue from contracts with customers	$	37,826	$	30,255

Deferred revenue

The Company has received advanced payments of $1.6 million as of December 31, 2023 and $1.0 million as of December 31, 2022 for products that are to be delivered or performed in the future. The advanced payments are primarily for material purchases of products to be delivered during to following 12-month period (In thousands):

	Total
	Deferred revenue
Balance at January 1, 2022	$	401
Addition during the year		12,452
Recognized during the year		(11,825	)
Balance at December 31, 2022	$	1,028
Addition during the year		18,255
Recognized during the year		(17,675	)
Balance at December 31, 2023	$	1,608

Backlog - Other performance obligations

The Company has a $31.2 million backlog as of December 31, 2023 of which $23.4 is expected to be recognized as revenue in 2024.