Quarterly report pursuant to Section 13 or 15(d)

Accounting Policies (Details 1)

v3.19.1
Accounting Policies (Details 1) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2019
Apr. 01, 2018
Mar. 31, 2019
Apr. 01, 2018
Accounting Policies [Abstract]        
Beginning balance   $ 251 $ 101 $ 174
Incurred costs for warranties satisfied during the period $ (20) (263) (27) (263)
Warranty Expenses:        
Warranties reserved for new product shipped during the period [1] 23 50 52 112
Change in estimate for pre-existing warranty liabilities [2] 15 84 (35) 99
Warranty Expense (Gain) / Loss 38 134 17 211
Ending balance $ 91 $ 122 $ 91 $ 122
[1] Warranty expenses accrued to cost of sales (based on current period shipments and historical warranty return rate).
[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 current period.