Lightbridge Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation, Summary of Significant Accounting Policies, and Nature of Operations (Policies)
Notes Tables
Notes Details

Stockholders' Equity and Stock-Based Compensation (Details)

v3.19.1

Stockholders' Equity and Stock-Based Compensation (Details) - $ / shares	1 Months Ended	3 Months Ended
	Jan. 30, 2018	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2016	Jun. 30, 2016
Warrants outstanding		844,337	844,337
Exercise price	$ 0.25
Issued To Investors On October 25, 2013 [Member]
Warrants outstanding		163,986	163,986
Exercise price		$ 11.50
Warrants exchanged for common stock				59,450
Exercise price, new warrant terms				$ 6.25
Common stock shares issuable upon exercise of warrants		250,000
Issued To Investors On November 17, 2014 [Member]
Warrants outstanding		546,919	546,919
Exercise price		$ 11.55
Exercise price, new warrant terms					$ 6.25
Common stock shares issuable upon exercise of warrants		546,919
Issued to an investment bank regarding the Series B Preferred Stock investment on January 30, 2018 [Member]
Warrants outstanding		133,432	133,432
Exercise price		$ 1.50
Common stock shares issuable upon exercise of warrants		133,432

- Definition

Exercise price of the warrants.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column A

+ Details

Name:	invest_InvestmentWarrantsExercisePrice
Namespace Prefix:	invest_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	ltbr_WarrantsExchangeForCommonStock
Namespace Prefix:	ltbr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Total number of shares of other common stock instruments held by shareholders, such as exchangeable shares. May be all or portion of the number of common shares authorized.

+ References

No definition available.

+ Details

Name:	us-gaap_CommonStockOtherSharesOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_FinancialInstrumentAxis=ltbr_IssuedToInvestorsOnOctoberTwoFiveTwoZeroOneThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=ltbr_IssuedToInvestorsOnNovemberOneSevenTwoZeroOneFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentAxis=ltbr_IssuedtoaninvestmentbankregardingtheSeriesBPreferredStockinvestmentonJanuaryThirtyTwoThousandEighteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: