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PENSION PLANS (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 28, 2018
Dec. 29, 2017
Retirement Benefits [Abstract]    
Pension plan contributions $ 45 $ 48
Components of net periodic benefit cost:    
Service cost 0 0
Interest on projected benefit obligation 265 261
Less estimated return on plan assets 191 298
Amortization of unrecognized losses 138 182
Net periodic benefit cost $ 212 $ 145