Business Segments (Tables)

6 Months Ended

Jun. 27, 2020

Segment Reporting [Abstract]

Schedule of Revenue Information by Product

Revenue information shown by product group is as follows:

	Three Months Ended				Six Months Ended
(in thousands)	June 27, 2020		June 29, 2019		June 27, 2020		June 29, 2019
Cyclo G6	$	2,113	$	3,351	$	5,036	$	6,457
Retina		2,608		5,248		6,742		10,847
Other(1)		1,498		1,827		3,462		3,717
Total revenues	$	6,219	$	10,426	$	15,240	$	21,021
(1) Includes service contract revenues of $311 and $296 and $627 and $604 recognized during the three and six months ended June 27, 2020 and June 29, 2019, 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:

	Three Months Ended				Six Months Ended
(in thousands)	June 27, 2020		June 29, 2019		June 27, 2020		June 29, 2019
United States	$	3,171	$	5,327	$	7,612	$	10,529
Europe		1,419		2,587		3,403		5,064
Rest of Americas		219		754		622		1,372
Asia/Pacific Rim		1,410		1,758		3,603		4,056
Total revenues	$	6,219	$	10,426	$	15,240	$	21,021