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Stock Compensation Plans (Details 4) (USD $) | 12 Months Ended |  |  |
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Dec. 27, 2014 | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options Outstanding, Number of Shares | 344,375 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber | 639,950 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber | 692,875 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber | 984,649 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Options Exercisable, Number of Shares | 158,875 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber | 198,825 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber | 192,625 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber |
Range Of Exercise Prices 2.56 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options Outstanding, Number of Shares | 8,625 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices256Member |  |  |
Options Outstanding, Weighted-Average Remaining Contractual Life | 2 months 12 days |  |  |
Options Outstanding, Weighted-Average Exercise Price | $ 2.56 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices256Member |  |  |
Options Exercisable, Number of Shares | 8,625 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices256Member |  |  |
Options Exercisable, Weighted-Average Exercise Price | $ 2.56 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices256Member |  |  |
Range Of Exercise Prices 5.28-5.66 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options Outstanding, Number of Shares | 116,750 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices528566Member |  |  |
Options Outstanding, Weighted-Average Remaining Contractual Life | 2 years 2 months 12 days |  |  |
Options Outstanding, Weighted-Average Exercise Price | $ 5.29 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices528566Member |  |  |
Options Exercisable, Number of Shares | 50,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices528566Member |  |  |
Options Exercisable, Weighted-Average Exercise Price | $ 5.30 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices528566Member |  |  |
Range Of Exercise Prices 5.85-6.06 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options Outstanding, Number of Shares | 97,875 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices585606Member |  |  |
Options Outstanding, Weighted-Average Remaining Contractual Life | 3 years 2 months 12 days |  |  |
Options Outstanding, Weighted-Average Exercise Price | $ 5.86 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices585606Member |  |  |
Options Exercisable, Number of Shares | 34,875 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices585606Member |  |  |
Options Exercisable, Weighted-Average Exercise Price | $ 5.90 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices585606Member |  |  |
Range Of Exercise Prices 6.07 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options Outstanding, Number of Shares | 96,125 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices607Member |  |  |
Options Outstanding, Weighted-Average Remaining Contractual Life | 1 year 2 months 12 days |  |  |
Options Outstanding, Weighted-Average Exercise Price | $ 6.07 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices607Member |  |  |
Options Exercisable, Number of Shares | 65,375 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices607Member |  |  |
Options Exercisable, Weighted-Average Exercise Price | $ 6.07 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices607Member |  |  |
Range Of Exercise Prices 11.86 [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options Outstanding, Number of Shares | 25,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices1186Member |  |  |
Options Outstanding, Weighted-Average Remaining Contractual Life | 4 years 2 months 12 days |  |  |
Options Outstanding, Weighted-Average Exercise Price | $ 11.86 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice / esca_RangeOfExercisePricesAxis = esca_RangeOfExercisePrices1186Member |  |  |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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