Net Sales by Product Line (Details) - USD ($) $ in Thousands	Aug. 28, 2021	Aug. 29, 2020
Accounting Policies [Abstract]
Microcircuits	$ 5,132	$ 5,488
Optoelectronics	5,144	4,222
Sensors and Displays	9,589	7,050
	19,865	16,760
Timing of revenue recognition
Transferred at a point in time	19,039	16,154
Transferred over time	826	606
Total Revenue	$ 19,865	$ 16,760