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Commitments and Contingencies - Additional Information (Details) $ in Millions		1 Months Ended	3 Months Ended			9 Months Ended
	Nov. 30, 2021 SquareFeet	Mar. 31, 2023	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jul. 31, 2023 USD ($)	May 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Operating lease, term of contract	39 months								24 months
Lease expiration date		Jun. 30, 2024
Right of use asset impairment loss				$ 0.2
Increase in operating lease liability			$ 0.3			$ 0.3
Increase in operating lease right-of-use asset			$ 0.3			$ 0.3
Operating lease, total space of the office | SquareFeet	5,000
Additional operating lease, term of contract	3 years
Weighted-average lease term			1 year			1 year
Weighted-average incremental borrowing rate			7.50%			7.50%
Rent expense			$ 0.1		$ 0.1	$ 0.2	$ 0.4
Variable lease payment								$ 0.2

X

- Definition

Additional lessee operating lease term of contract.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Increase In Operating Lease Liability

+ References

No definition available.

+ Details

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

X

- Definition

Increase in operating lease right of ase asset

+ References

No definition available.

+ Details

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Namespace Prefix:	elym_
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X

- Definition

Operating lease total space of the office.

+ References

No definition available.

+ Details

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X

- Definition

Right-Of-Use Asset Impairment loss

+ References

No definition available.

+ Details

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- References

No definition available.

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X

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Date which lease or group of leases is set to expire, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-3

+ Details

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Balance Type:	na
Period Type:	instant

X

- Definition

Amount of lease payments to be received by lessor for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479773/842-30-50-12

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X

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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-Paragraph 4
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

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X

- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-4

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