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Organization and Operations (Details Narrative) - shares | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2024 | Feb. 02, 2024 | Feb. 01, 2024 | Dec. 31, 2023
Revers stock split ratio | On February 1, 2024, the Company announced a reverse stock-split of its common stock, par value $0.001 per share, at a ratio of 1 for 30. The reverse stock-split became effective on February 2, 2024. The Company’s common stock began trading on a reverse stock-split-adjusted basis on The Nasdaq Capital Market on February 5, 2024 under the existing trading symbol “GTBP.” |  |  |
Common stock, shares outstanding | 1,380,633 |  |  | 1,380,633
Common stock, shares authorized | 250,000,000 |  |  | 250,000,000
Common Stock [Member] |  |  |  |
Common stock, shares outstanding |  | 1,380,633 | 41,419,000 |

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