Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 03, 2020	Mar. 29, 2019	Apr. 03, 2020	Mar. 29, 2019
Investments, Owned, Federal Income Tax Note [Line Items]
Effective Income Tax Rate Reconciliation, Percent	(18.30%)	(1.20%)	(8.30%)	(2.50%)
Income tax expense	$ 1,580	$ 544	$ 2,966	$ 1,669
Unrecognized tax benefit	300		$ 300
Effective tax rate			21.00%
Deferred tax assets	39,800		$ 39,800
Net Operating Loss Carryforward
Investments, Owned, Federal Income Tax Note [Line Items]
Increase to deferred tax valuation allowance	$ 1,400