Represents the Term of Long Term Purchase Commitment

No definition available.

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- Definition

Represents the number of appraisals, average of which shall determine fair market value of property.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Represents the number of methods used for determination of fair market value of property.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Number of properties

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Payment related to Property Value Assurance

+ References

No definition available.

+ Details

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

- Definition

Represents the percentage added to the value identified in the Town's 2011 tax rolls considered for determination of fair market value.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period from the date listed for sale within which the property should be sold.

+ References

No definition available.

+ Details

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Namespace Prefix:	emes_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Purchase Commitment, Period of Contract

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Represents the term of agreement.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the timeframe considered for determination of any shortfall between the selling price and the fair market value established by appraisal.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
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-SubTopic 20
-Section 25
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of estimated penalties recognized in the period arising from income tax examinations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319

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Balance Type:	debit
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

+ Details

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

- Definition

Amount of loss contingency liability.

+ References

+ Details

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

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Balance Type:
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- Details

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- Details

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- Details

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- Details

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COMMITMENTS AND CONTINGENCIES - Narrative (Details)				1 Months Ended		12 Months Ended
COMMITMENTS AND CONTINGENCIES - Narrative (Details)	Nov. 09, 2015 Method	May. 29, 2015 USD ($)	May. 13, 2013 Appraisal	Dec. 31, 2015 USD ($) property	Apr. 30, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2012 USD ($)
Purchase commitment, period of contract					5 years
Capital leased assets, gross				$ 3,300,000	$ 3,300,000	$ 3,300,000
Number of properties \| property				141
Payments related to property value guaranty						100,000
Liabilities related to uninsured claims and litigation				$ 0		0	$ 0
Environmental matter liability				0		0	$ 0
Letter of Credit \| SSS
Outstanding borrowings				$ 8,000,000		$ 8,000,000
Mining Agreement \| Town of Sioux Creek Wisconsin
Term of agreement			20 years
Number of appraisals average of which shall determine fair market value of property \| Appraisal			2
Timeframe considered for determination of shortfall between selling price and fair market value established by appraisal			6 months
Mining Agreement \| Town of Auburn Wisconsin
Period from date listed for sale within which property should be sold	270 days
Number of methods used for determination of fair market value \| Method	2
Percentage added to value Identified in Towns 2011 tax rolls considered for determination of fair market value	10.00%
Internal Revenue Service (IRS)
Amount of excise tax penalty		$ 50,000						$ 340,000
Third-party wet sand supplier
Long term purchase commitment original term						5 years
Minimum
Purchase commitment, period of contract							5 years
Term of agreement						5 years
Maximum
Purchase commitment, period of contract							10 years
Term of agreement						7 years