Segment and Revenue Information (Tables)

12 Months Ended

Sep. 30, 2022

Segment Reporting [Abstract]

Schedule of Reportable Segment

Information on reportable segments utilized by the chief operating decision maker is as follows:

	Year Ended September 30,
(in thousands)	2022		2021
Revenue
Aerospace and Defense	$	53,306	$	50,838
Broadband	70,820		107,606
Total revenue	$	124,126	$	158,444
Segment profit
Aerospace and Defense gross profit	$	5,357	$	13,705
Aerospace and Defense research and development expense	15,543		14,616
Aerospace and Defense segment profit	$	(10,186)	$	(911)
Broadband gross profit	$	24,361	$	47,783
Broadband research and development expense	2,993		2,832
Broadband segment profit	$	21,368	$	44,951
Total segment profit	$	11,182	$	44,040

Schedule of Revenue by Major Product Category

Revenue is classified by major product category as presented below:

	Year Ended September 30,
(in thousands)	2022		2021
Aerospace and Defense
Inertial Navigation	$	45,318	$	36,539
Defense Optoelectronics	7,988		14,299
Broadband
CATV Optical Transmitters and Components	58,488		95,255
Data Center Chips	4,814		3,106
Optical Sensing	7,518		9,245
Total revenue	$	124,126	$	158,444

Schedule of Revenue by Geographic Region

The following table sets forth revenue by geographic area based on customers’ billing addresses:

	Year Ended September 30,
(in thousands)	2022		2021
United States and Canada	$	106,533	$	139,443
Asia	8,697		11,836
Europe	6,489		4,802
Other	2,407		2,363
Total revenue	$	124,126	$	158,444