XML 41 R23.htm IDEA: XBRL DOCUMENT
v3.22.4

Stockholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Equity [Abstract] |
Schedule of Shares of Common Stock Available for Future Issuance | As of December 31, 2022, the Company’s shares of common stock available for future issuance were as follows:
Shares available for future grant under the equity incentive plan |  |  | 241,635 |
Shares available for future issuance under the employee stock purchase plan |  |  | 729,218 |
Shares available for future issuance upon the exercise of warrants and pre-funded warrants |  |  | 13,966,283 |
Total available for future issuance |  |  | 14,937,136 |
Schedule of Outstanding Warrants to Purchase Shares of Common Stock | As of December 31, 2022, the Company’s outstanding warrants to purchase shares of its common stock were as follows:
|  | Shares of Common Stock Underlying Warrants |  |  | Exercise Price Per Share |  |  | Expiration Date
Warrant issued with term loan |  |  | 25,000 |  |  | $ | 22.06 |  |  | June 30, 2025
Warrant issued with term loan |  |  | 33,923 |  |  | $ | 19.12 |  |  | May 28, 2031
Warrants issued in public offering |  |  | 13,107,360 |  |  | $ | 5.325 |  |  | July 1, 2024
Pre-funded warrants issued in public offering |  |  | 800,000 |  |  | $ | 0.001 |  |  | Do not expire
Total outstanding |  |  | 13,966,283 |  |  |  |  |  |

X
- Definition Schedule of common stock reserved for issuance. + References No definition available. + Details
Name: | etnb_ScheduleOfCommonStockReservedForIssuanceTableTextBlock
Namespace Prefix: | etnb_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
Name: | us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration