Business Segments (Tables)

9 Months Ended

Sep. 30, 2023

Segment Reporting [Abstract]

Schedule of Revenue Information by Product

Revenue information shown by product group is as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30, 2023		October 1, 2022		September 30, 2023		October 1, 2022
Cyclo G6	$	3,042	$	3,460	$	10,369	$	10,477
Retina		7,865		8,750		21,936		23,580
Other(1)		1,943		2,425		7,106		7,720
Total revenues	$	12,850	$	14,635	$	39,411	$	41,777

(1) Includes service contract revenues of $409 thousand and $358 thousand and $1,174 thousand and $1,122 thousand recognized during the three and nine months ended September 30, 2023 and October 1, 2022, respectively. Includes $364 thousand and $351 thousand and $1,091 thousand and $985 thousand recognized revenue related to the exclusive distribution rights during the three and nine months ended September 30, 2023 and October 1, 2022, respectively. Other also includes revenues from paid service, royalty, freight and legacy G probes.

Revenue Information by Geographic Region

Revenue information shown by geographic region, based on the sales destination, is as follows (in thousands):

	Three Months Ended				Nine Months Ended
	September 30, 2023		October 1, 2022		September 30, 2023		October 1, 2022
United States	$	6,140	$	7,415	$	19,656	$	20,806
Europe, Middle East and Africa		4,197		3,480		11,217		9,732
Asia/Pacific Rim		2,136		2,910		6,761		8,949
Rest of Americas		377		830		1,777		2,290
Total revenues	$	12,850	$	14,635	$	39,411	$	41,777