Significant Accounting Policies deferred revenue (Details) - USD ($)	3 Months Ended	6 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2026	Sep. 30, 2025	Jun. 30, 2025	Sep. 30, 2024	Jun. 30, 2024
Revenue Recognition and Deferred Revenue [Abstract]
Deferred Revenue	$ 440,000	$ 342,000	$ 440,000	$ 342,000	$ 440,000	$ 277,000	$ 328,000	$ 329,000	$ 280,000
Deferred Revenue, Additions	351,000	211,000	462,000	394,000
Deferred Revenue, Revenue Recognized	(188,000)	(198,000)	(350,000)	(332,000)
Revenue recorded that was included within prior period deferred revenue [Line Items]	$ 124,000	$ 164,000	$ 218,000	$ 272,000

Revenue recorded that was included within prior period deferred revenue

No definition available.

Name:	esmc_RevenueRecordedThatWasIncludedWithinPriorPeriodDeferredRevenue
Namespace Prefix:	esmc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(26)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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

- Definition

Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

No definition available.

+ Details

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

- Definition

Amount of revenue recognized that was previously reported as deferred or unearned revenue.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredRevenueRevenueRecognized1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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