Represents amount of insurance policy.

No definition available.

Name:	esoa_InsurancePolicyAmount
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents amount of insurance policy premium outstanding.

+ References

No definition available.

+ Details

Name:	esoa_InsurancePolicyPremiumOutstanding
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of maximum debt to tangible net worth ratio to be measured semi-annually.

+ References

No definition available.

+ Details

Name:	esoa_MaximumDebtTotangibleNetWorthRatioToBeMeasuredSemiAnnually
Namespace Prefix:	esoa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of minimum current ratio to be measured quarterly.

+ References

No definition available.

+ Details

Name:	esoa_MinimumCurrentRatioToBeMeasuredQuarterly
Namespace Prefix:	esoa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of minimum traditional debt service coverage measured quarterly on a rolling twelve- month basis.

+ References

No definition available.

+ Details

Name:	esoa_MinimumDebtServiceCoverageMeasuredQuarterlyOnRollingTwelveMonthBasis
Namespace Prefix:	esoa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of minimum traditional debt service coverage of measured quarterly on a rolling twelve-month basis.

+ References

No definition available.

+ Details

Name:	esoa_MinimumDebtServiceCoverageMeasuredQuarterlyOnRollingTwelveMonthBasisForExceedingBorrowingLimit
Namespace Prefix:	esoa_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents amount of tangible net worth measured at quarterly.

+ References

No definition available.

+ Details

Name:	esoa_MinimumTangibleNetWorthToBeMeasuredQuarterly
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents amount of minimum tangible net worth to be measured quarterly.

+ References

No definition available.

+ Details

Name:	esoa_MinimumTangibleNetWorthToBeMeasuredQuarterlyForExceedingBorrowingLimit
Namespace Prefix:	esoa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of eligible accounts receivable.

+ References

No definition available.

+ Details

Name:	esoa_PercentageOfEligibleAccountsReceivable
Namespace Prefix:	esoa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=esoa_UnitedBankIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=esoa_RevolvingCreditFacilityOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SHORT-TERM AND LONG-TERM DEBT (Detail Textuals) - USD ($)	1 Months Ended		3 Months Ended
	Mar. 21, 2018	Jan. 31, 2018	Dec. 31, 2018	Sep. 30, 2018
Line of Credit Facility [Line Items]
Insurance policy amount		$ 3,100,000
Insurance policy premium outstanding				$ 570,000
United Bank, Inc. \| Financing agreement "Operating Line of Credit (2018)"
Line of Credit Facility [Line Items]
Line of credit	$ 15,000,000
Interest rate on the line of credit description	Wall Street Journal" Prime Rate (the index) with a floor of 4.99%
Interest rate on line of credit	4.99%
Amount borrowed against the line of credit			$ 9,500,000	5,500,000
Amount available to borrowing			$ 3,000,000	$ 7,000,000
Percentage of eligible accounts receivable			70.00%
Amount of loan covenants			$ 12,500,000
Minimum tangible net worth			$ 17,000,000
Minimum traditional debt service coverage ratio			1.50x
Minimum current ratio			1.50x
Maximum debt to tangible net worth ratio			1.50x
Amount of minimum tangible net worth			$ 19,000,000
Traditional debt service coverage ratio			2.0x
United Bank, Inc. \| Financing agreement "Operating Line of Credit (2017)"
Line of Credit Facility [Line Items]
Line of credit			$ 15,000,000