Commitments and Contingencies (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 26, 2018 building press
Loss Contingencies [Line Items]
Number of manufacturing buildings | building		3
Number of presses on site | press		8
Orange Vs. State Of California For The County Of Los Angeles
Loss Contingencies [Line Items]
Judgment offered	$ 48
Damage from Fire, Explosion or Other Hazard
Loss Contingencies [Line Items]
Manufacturing buildings severely damaged | building		1
Presses on site, severely damaged | press		6
Estimated loss, machinery and equipment	1,107
Estimated loss, inventories	78
Estimated loss, other period and fire remediation costs	176
Estimate of loss, insurance deductible	$ 50