Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies Concentrations (Details)

v3.21.2
Significant Accounting Policies Concentrations (Details) - Customer Concentration Risk
12 Months Ended
Sep. 26, 2021
Sep. 27, 2020
Sep. 29, 2019
Revenue Benchmark [Member] | Service, Other      
Concentration Risk      
Percentage of total 5.00% 5.00% 5.00%
Customer/licensee one | Sales      
Concentration Risk      
Percentage of total 23.00% 10.00% 24.00%
Customer/licensee two | Sales      
Concentration Risk      
Percentage of total 14.00% 19.00% 15.00%
Customer/licensee three | Sales      
Concentration Risk      
Percentage of total 13.00% 12.00% 10.00%
Customer/licensee four | Sales      
Concentration Risk      
Percentage of total   10.00%