Stock-based Compensation and Stockholders' Equity (Tables)

3 Months Ended

Aug. 29, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The following table summarizes stock-based compensation by income statement line item:

	Three Months Ended
(In thousands)	August 29, 2021		August 30, 2020
Cost of product sales	$	37	$	123
Research and development	49		64
Selling, general and administrative	534		705
Total stock-based compensation	$	620	$	892