| Document And Entity Information | Jan. 15, 2025 |
| Document Information [Line Items] | |
| Entity, Registrant Name | Universal Biosensors, Inc. |
| Document, Type | 8-K |
| Document, Period End Date | Jan. 15, 2025 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 000-52607 |
| Entity, Tax Identification Number | 98-0424072 |
| Entity, Address, Address Line One | 1 Corporate Avenue |
| Entity, Address, City or Town | Rowville |
| Entity, Address, Postal Zip Code | 3178 |
| Entity, Address, Address Line Two | Victoria |
| Entity, Address, Country | AU |
| City Area Code | 61 |
| Local Phone Number | 3 9213 9000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity, Emerging Growth Company | true |
| Entity, Ex Transition Period | true |
| Amendment Flag | false |
| Entity, Central Index Key | 0001279695 |
