XML 55 R38.htm IDEA: XBRL DOCUMENT
v3.25.3

Schedule of Warrant Activity (Details) | 9 Months Ended
--- | ---
Sep. 30, 2025 $ / shares shares
Common Stock Warrants And Options |
Warrants outstanding, beginning balance | shares | 1,120,429
Weighted average exercise price, beginning balance | $ / shares | $ 18.85
Number of warrants, granted | shares | 16,468,308
Weighted average exercise price, granted | $ / shares | $ 2.04
Number of warrants, granted pursuant to full ratchet price and anti-dilution protections | shares | 32,709,588
Weighted average exercise price, granted pursuant to full ratchet price and anti-dilution protections | $ / shares | $ 0.64
Number of warrants, forfeited/cancelled | shares | (1,866)
Weighted average exercise price, forfeited/cancelled | $ / shares | $ 102.00
Number of warrants, exercised | shares | (837,069)
Weighted average exercise price, exercised | $ / shares | $ 2.11
Warrants outstanding, ending balance | shares | 49,459,390
Weighted average exercise price, ending balance | $ / shares | $ 1.04
Warrants exercisable, ending balance | shares | 13,956,955
Weighted average exercise price, exercisable, ending balance | $ / shares | $ 2.04

X
- References No definition available. + Details
Name: | GTBP_DisclosureCommonStockWarrantsAndOptionsAbstract
Namespace Prefix: | GTBP_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share Based Compensation Arrangements By Share Based Payment Award Non Options Equity Instruments Exercisable. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisable
Namespace Prefix: | GTBP_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Granted pursuant to full ratchet price protection, shares. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedPursuantToFullRatchetPriceProtection
Namespace Prefix: | GTBP_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share Based Compensation Arrangement By ShareBased Payment Award Non Options Exercisable Weighted Average Exercise Price. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix: | GTBP_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share based compensation arrangement by share based payment award non options exercised weighted average exercise price. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsExercisedWeightedAverageExercisePrice
Namespace Prefix: | GTBP_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award non options forfeitures and expirations weighted average exercise price. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsForfeituresAndExpirationsWeightedAverageExercisePrice
Namespace Prefix: | GTBP_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Granted pursuant to full ratchet price protection, weighted average exercise price. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsGrantedPursuantToFullRatchetPriceProtectionWeightedAverageExercisePrice
Namespace Prefix: | GTBP_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangement by share based payment award non options granted weighted average exercise price. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsGrantedWeightedAverageExercisePrice
Namespace Prefix: | GTBP_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share based compensation arrangements by share based payment award non options outstanding weighted average exercise price. + References No definition available. + Details
Name: | GTBP_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix: | GTBP_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of non-option equity instruments exercised by participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(02) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares under non-option equity instrument agreements that were either cancelled or expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net number of non-option equity instruments granted to participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant