Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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

Subsequent Events (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
Subsequent Events (Details) - USD ($) $ in Thousands	Apr. 22, 2018	Jan. 30, 2018	Mar. 27, 2018	Mar. 28, 2017	Mar. 27, 2018	Mar. 28, 2017
Subsequent Event [Line Items]
Non-cash impairment charge		$ 219	$ 72	$ 0	$ 72	$ 0
Subsequent Event [Member]
Subsequent Event [Line Items]
Non-cash impairment charge	$ 72