Net Sales by Product Line (Details) - USD ($) $ in Thousands	Feb. 26, 2022	Feb. 27, 2021
Accounting Policies [Abstract]
Microelectronics	$ 1,541	$ 723
Optoelectronics	2,205	1,379
Sensors and Displays	2,320	1,948
	6,066	4,050
Timing of revenue recognition
Recognized at a point in time	5,351	3,327
Recognized over time	715	723
Total Revenue	$ 6,066	$ 4,050