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Note 12 - Lease (Details Textual)	12 Months Ended
	Dec. 31, 2022
Statement Line Items [Line Items]
Lease, term of contract (Year)	5 years
Lease, renewal term (Year)	5 years

X

- Definition

The renewal term of the least.

+ References

No definition available.

+ Details

Name:	elbm_LeaseRenewalTerm
Namespace Prefix:	elbm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The term of the lease.

+ References

No definition available.

+ Details

Name:	elbm_LeaseTermOfContract
Namespace Prefix:	elbm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	elbm_Statement1LineItems
Namespace Prefix:	elbm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration