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Prepaid Project Costs (Details Narrative) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Battelle Energy Alliance, LLC [Member]
Prepaid project costs	$ 400,000.0	$ 400,000

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- Definition

Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_PrepaidExpenseNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- Details

Name:	us-gaap_RelatedPartyTransactionAxis=ltbr_BattelleEnergyAllianceLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: