PENSION PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 28, 2020	Jun. 28, 2019	Jun. 28, 2020	Jun. 28, 2019
Retirement Benefits [Abstract]
Pension plan contributions	$ 44	$ 44	$ 132	$ 134
Components of net periodic benefit cost:
Service cost	0	0	0	0
Interest on projected benefit obligation	423	298	698	827
Less estimated return on plan assets	267	259	481	641
Amortization of unrecognized losses (gains)	321	(31)	403	246
Net periodic benefit cost	$ 477	$ 8	$ 620	$ 432