Annual report [Section 13 and 15(d), not S-K Item 405]

Schedule of Warranty Reserves (Details)

v3.25.3
Schedule of Warranty Reserves (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 28, 2025
Sep. 29, 2024
Accounting Policies [Abstract]    
Beginning balance $ 52 $ 75
Incurred costs for warranties satisfied during the period (52)
Warranties reserved for new product shipped during the period [1] 152 106
Change in estimate for pre-existing warranty liabilities [2] (42) (77)
Warranty Expense 110 29
Ending balance $ 162 $ 52
[1] Warranty expenses accrued to cost of sales for shipped optical assemblies of $9 thousand (based on prior three months shipments of optical assemblies and the optical assembly historical warranty return rate) in addition to an expected warranty repair cost of $143 thousand for shipped day windows due to a glass cracking issue.
[2] Changes in estimated warranty liabilities recognized in cost of sales associated with: the period end customer returned warranty backlog, or the actual costs of repaired/replaced warranty units which were shipped to the customer during the year. During the twelve months ended September 28, 2025, the warranty return rate was below historical levels resulting in a favorable change in estimate during the period.