Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 26, 2019	Mar. 27, 2018	Mar. 26, 2019	Mar. 27, 2018
Revenue from Contract with Customer [Abstract]
Advertising Costs	$ 142	$ 175	$ 142	$ 175

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Name:	us-gaap_MarketingAndAdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration