XML 65 R50.htm IDEA: XBRL DOCUMENT v3.25.0.1

Stockholders' Equity - Additional Information (Details) - USD ($)									1 Months Ended		12 Months Ended
	Jul. 24, 2024	Jul. 19, 2024	Jul. 18, 2024	Jul. 17, 2024	Jul. 10, 2024	Jun. 17, 2024	Apr. 16, 2024	Aug. 16, 2023	Oct. 31, 2024	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2021	Aug. 06, 2024	Jun. 28, 2024	Apr. 18, 2024	Apr. 08, 2024	Jan. 29, 2024	Nov. 15, 2023	Dec. 15, 2021
Stockholders’ Equity [Line Items]
Number of warrants outstanding														2,565,392
Exercise price (in Dollars per share)		$ 3.9
Exercise price (in Dollars per share)				$ 3.125							$ 15.09	$ 4.96
Expire date		Jul. 20, 2026		Jul. 24, 2026	Jul. 17, 2026
Warrant [Member]
Stockholders’ Equity [Line Items]
Warrants exercise price per share (in Dollars per share)							$ 2.35
Payment per warrant (in Dollars per share)											$ 0.125
Series B warrants [Member]
Stockholders’ Equity [Line Items]
Warrant term											18 months
Aggregate gross (in Dollars)											$ 9,000,000
Series A warrants [Member]
Stockholders’ Equity [Line Items]
Warrant term											5 years 6 months
Series A and Series B Warrants [Member]
Stockholders’ Equity [Line Items]
Warrants exercise price per share (in Dollars per share)											$ 2.35
Pre Funded Warrant [Member]
Stockholders’ Equity [Line Items]
Warrants exercise price per share (in Dollars per share)																	$ 2.349
Common Warrants [Member]
Stockholders’ Equity [Line Items]
Warrants or rights exercisable date											Apr. 10, 2029
Warrants exercise price per share (in Dollars per share)											$ 2.9375						$ 2.35
Warrant term																	5 years
Class A common stock warrants [Member]
Stockholders’ Equity [Line Items]
Payment per warrant (in Dollars per share)						$ 0.125
Series C warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares					50,000
Warrants exercise price per share (in Dollars per share)											$ 3.25
Warrant term							5 years
Series D Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											118,852
Warrants exercise price per share (in Dollars per share)											$ 3.25
Series C Warrants and Series D warrants [Member]
Stockholders’ Equity [Line Items]
Warrant term							24 months
June Inducement Warrants [Member]
Stockholders’ Equity [Line Items]
Deemed dividend to common stockholders (in Dollars)											$ 8,500,000
June Placement Agent Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											49,130
Warrants exercise price per share (in Dollars per share)											$ 2.9375
July Private Placement [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding														2,236,026
July Offering Placement [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding														156,522
July Ordinary Course Placement Agent [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding														172,844
Black-Scholes pricing model [Member]
Stockholders’ Equity [Line Items]
Warrants exercise price per share (in Dollars per share)								$ 52.5
Fair value of warrants (in Dollars)								$ 800,000
Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Common stock voting rights											one
Warrants to purchase											10,640
Price per share (in Dollars per share)											$ 0.001	0.001
Warrants or rights exercisable date											Aug. 12, 2021
Warrant purchase shares					150,000	3,395,782					154,894									238,535
Number of warrants outstanding											6,802,668				3,563,764	4,967,470		145,020	501,821
Warrants exercise price per share (in Dollars per share)						$ 2.5
Warrant term						24 months					4 years 6 months
Percentage of aggregate number of shares	7.00%			7.00%							7.00%
Exercise price (in Dollars per share)											$ 5.0313
Reverse stock split	162,344				10,500
Aggregate shares			4.025
Share issued											156,522
Class A Common Stock [Member] | Warrant [Member]
Stockholders’ Equity [Line Items]
Price per share (in Dollars per share)											$ 120
Warrant purchase shares											118,852									116,935
Fair value of warrants (in Dollars)													$ 500,000
Payment per warrant (in Dollars per share)							$ 0.125
Percentage of aggregate number of shares											7.00%
Class A Common Stock [Member] | Series B warrants [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding																			242,425
Class A Common Stock [Member] | Series A warrants [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding																			242,425
Class A Common Stock [Member] | Placement agent warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											167,982
Number of warrants outstanding																167,982
Warrants exercise price per share (in Dollars per share)											$ 3.25
Percentage of aggregate number of shares											7.00%
Expire date											Apr. 18, 2029
Class A Common Stock [Member] | Pre Funded Warrant [Member]
Stockholders’ Equity [Line Items]
Price per share (in Dollars per share)																	$ 0.001
Warrant purchase shares																	1,572,894
Class A Common Stock [Member] | Class A common stock warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares							4,799,488
Warrants exercise price per share (in Dollars per share)							$ 2.35
Class A Common Stock [Member] | Series C warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares							2,399,744				2,349,744
Number of warrants outstanding																2,399,744
Warrants exercise price per share (in Dollars per share)											$ 2.35
Expire date											Apr. 18, 2029
Class A Common Stock [Member] | Series D Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares							2,399,744
Number of warrants outstanding																2,399,744
Warrants exercise price per share (in Dollars per share)						$ 2.35
Percentage of aggregate number of shares											7.00%
Exercise of remaining shares						1,697,891
Class A Common Stock [Member] | June Inducement Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											926,596
Number of warrants outstanding															3,395,782
Warrants exercise price per share (in Dollars per share)											$ 2.5
Expire date											Jun. 18, 2026
Class A Common Stock [Member] | June Placement Agent Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											49,130
Number of warrants outstanding															167,982
Warrants exercise price per share (in Dollars per share)											$ 2.9375
Expire date											Jun. 18, 2026
Class A Common Stock [Member] | Placement Agent Warrants June 2024 [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											118,852
Warrants exercise price per share (in Dollars per share)											$ 3.25
Expire date											Jun. 18, 2026
Class A Common Stock [Member] | July Private Placement [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											2,236,026
Warrants exercise price per share (in Dollars per share)											$ 3.9
Expire date											Jul. 20, 2026
Class A Common Stock [Member] | July Offering Placement [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											156,522
Warrants exercise price per share (in Dollars per share)											$ 5.0313
Expire date											Jul. 20, 2026
Class A Common Stock [Member] | First Tranche July Ordinary Course Placement Agent Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											10,500
Warrants exercise price per share (in Dollars per share)											$ 3.125
Expire date											Jul. 17, 2026
Class A Common Stock [Member] | Second Tranche July Ordinary Course Placement Agent Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											162,344
Warrants exercise price per share (in Dollars per share)											$ 3.125
Expire date											Jul. 24, 2026
Class B Common Stock [Member]
Stockholders’ Equity [Line Items]
Common stock voting rights											five
Price per share (in Dollars per share)											$ 0.001	$ 0.001
Common Stock [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											49,130
Common Stock [Member] | Common Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares																	2,212,766
Common Stock [Member] | Series D Warrants [Member]
Stockholders’ Equity [Line Items]
Percentage of aggregate number of shares											7.00%
Common Stock [Member] | Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Stock options exercised											7,435,609
Stockholders shares converted											1,555	3,555
Reverse stock split											66,970	7
Common Stock [Member] | Class B Common Stock [Member]
Stockholders’ Equity [Line Items]
Stockholders shares converted											(1,555)	(3,555)
Reverse stock split												6
Public offering [Member] | Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares																	639,872
Public offering [Member] | Class A Common Stock [Member] | Underwriters Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											5,536
Warrants exercise price per share (in Dollars per share)											$ 120
Expire date											Feb. 12, 2026
Underwriters [Member] | Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares													9,576
2021 private placement offering [Member]
Stockholders’ Equity [Line Items]
Warrants exercise price per share (in Dollars per share)									$ 1	$ 1
Warrant term											5 years
2021 private placement offering [Member] | Warrant [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											116,935
2021 private placement offering [Member] | Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											4,679									116,935
Warrants exercise price per share (in Dollars per share)											$ 175
Exercise price (in Dollars per share)									$ 2,858	$ 114,077
Aggregate gross (in Dollars)									$ 2,858	$ 114,077
2021 private placement offering [Member] | Class A Common Stock [Member] | Underwriters Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											4,679									4,679
Warrants exercise price per share (in Dollars per share)											$ 175
Expire date											Dec. 01, 2026
October 2023 registered direct offering [Member] | Series B warrants [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding											242,425
Warrant term											18 months
October 2023 registered direct offering [Member] | Series A warrants [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding											242,425
Warrants exercise price per share (in Dollars per share)											$ 16.5
Warrant term											5 years 6 months
October 2023 registered direct offering [Member] | Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											16,971
October 2023 registered direct offering [Member] | Class A Common Stock [Member] | Placement agent warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											16,971
Number of warrants outstanding																			16,971
Warrants exercise price per share (in Dollars per share)											$ 20.625
Expire date											Oct. 11, 2028
December 2023 registered direct offering [Member] | Underwriters Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											9,489
Warrants exercise price per share (in Dollars per share)											$ 21.813
December 2023 registered direct offering [Member] | Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											135,531							135,531
Warrants exercise price per share (in Dollars per share)											$ 16.2
December 2023 registered direct offering [Member] | Class A Common Stock [Member] | Placement agent warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											9,489
Warrants exercise price per share (in Dollars per share)											$ 21.813
Expire date											Dec. 20, 2028
December 2023 registered direct offering [Member] | Class A Common Stock [Member] | Investor warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											135,531
Warrants exercise price per share (in Dollars per share)											$ 16.2
Expire date											Jun. 22, 2029
December 2023 registered direct offering [Member] | Class A Common Stock [Member] | Underwriters Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares																		9,489
New Warrant Shares [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares					2,319,186
New Warrant Shares [Member] | Warrant [Member]
Stockholders’ Equity [Line Items]
Net proceeds (in Dollars)											$ 6,300,000
April 2024 Public Offering [Member] | Class A Common Stock [Member] | Placement agent warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											154,894
Warrants exercise price per share (in Dollars per share)											$ 2.9375
Expire date											Apr. 08, 2029
April 2024 Public Offering [Member] | Class A Common Stock [Member] | Common Warrants [Member]
Stockholders’ Equity [Line Items]
Warrant purchase shares											297,872
Warrants exercise price per share (in Dollars per share)											$ 2.35
Expire date											Apr. 10, 2029
July Registered Direct Offering [Member]
Stockholders’ Equity [Line Items]
Public offering shares			2,236,026
July Registered Direct Offering [Member] | Class A Common Stock [Member]
Stockholders’ Equity [Line Items]
Number of warrants outstanding											2,236,026

X

- Definition

Number of shares exercised.

+ References

No definition available.

+ Details

Name:	lgvn_ExerciseOfRemainingShares
Namespace Prefix:	lgvn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Payment per warrant.

+ References

No definition available.

+ Details

Name:	lgvn_PaymentPerWarrant
Namespace Prefix:	lgvn_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of aggregate number of shares.

+ References

No definition available.

+ Details

Name:	lgvn_PercentageOfAggregateNumberOfShares
Namespace Prefix:	lgvn_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Warrants to purchase.

+ References

No definition available.

+ Details

Name:	lgvn_WarrantsToPurchase
Namespace Prefix:	lgvn_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 272
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483014/272-10-45-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 272
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-14

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 18
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-18

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(27)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-03(i)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-03(i)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-03(i)(2)(i))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-03(i)(2)(ii))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3

+ Details

Name:	us-gaap_ClassOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Date the warrants or rights are exercisable, in YYYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

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

X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

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

X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

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

X

- Definition

Number of shares of other common stock instruments held by shareholder, including, but not limited to, exchangeable shares.

+ References

No definition available.

+ Details

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

X

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_CommonStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_CommonStockVotingRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-4

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-5

+ Details

Name:	us-gaap_ConversionOfStockSharesConverted1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Expiration, mandatory redemption, or due date, in YYYY-MM-DD format, of the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-5

+ Details

Name:	us-gaap_DebtConversionConvertedInstrumentExpirationOrDueDateDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 25
-Paragraph 13
-SubTopic 10
-Topic 480
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481766/480-10-25-13

+ Details

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

X

- Definition

The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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

X

- Definition

Amount of cash inflow from capital contributions to an entity associated with a dividend reinvestment plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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

X

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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

X

- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

+ Details

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

X

- Definition

Reduction in the number of shares during the period as a result of a reverse stock split.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of share options (or share units) exercised during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(02)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Per share increase in exercise price of warrant. Excludes change due to standard antidilution provision.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_WarrantExercisePriceIncrease
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, 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 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=us-gaap_WarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=us-gaap_SeriesBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=us-gaap_SeriesAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_SeriesAAndSeriesBWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_PreFundedWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_CommonWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_ClassACommonStockWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_SeriesCWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_SeriesDWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_SeriesCWarrantsAndSeriesDWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_JuneInducementWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_JunePlacementAgentWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_JulyPrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_JulyOfferingPlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_JulyOrdinaryCoursePlacementAgentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueConsensusPricingModelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_PlacementAgentWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_PlacementAgentWarrants1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_FirstTrancheJulyOrdinaryCoursePlacementAgentWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_SecondTrancheJulyOrdinaryCoursePlacementAgentWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_UnderwritersWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=lgvn_UnderwritersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=lgvn_TwoThousandTwentyOnePIPEOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=lgvn_October2023RegisteredDirectOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=lgvn_December2023OfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=lgvn_InvestorWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_NoteWarrantMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=lgvn_AprilTwoThousandTwentyFourPublicOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=lgvn_JulyRegisteredDirectOfferingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: