Revenue from Contracts with Customers - Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Oct. 06, 2018	Oct. 05, 2019	Oct. 06, 2018
Revenue from Contracts with Customers
Increase due to cash received, excluding amounts recognized as revenue during the period			$ 671
Revenue recognized that was included in the contract liability balance at the beginning of the period	$ 259	$ 413
Increase (decrease) in contract liability during the period	$ (259)	$ (413)	$ 671

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration from customer has been received excluding the revenue recognized 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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

+ Details

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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=118932676&loc=d3e3602-108585

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Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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Period Type:	duration