Revenue from Contracts with Customers - Contract Balances (Details) - USD ($) $ in Thousands	4 Months Ended	6 Months Ended
Jul. 13, 2019	Jul. 14, 2018	Jul. 13, 2019	Jul. 14, 2018
Revenue from Contracts with Customers
Increase due to cash received, excluding amounts recognized as revenue during the period	$ 0	$ 930	$ 0	$ 930
Revenue recognized that was included in the contract liability balance at the beginning of the period	154	0	413	0
Increase (decrease) in contract liability during the period	$ (154)	$ 930	$ (413)	$ 930

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration from customer has been received excluding the revenue recognised during the year.

No definition available.

+ Details

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Namespace Prefix:	esca_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

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

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration