| Document And Entity Information | Sep. 10, 2024 |
| Document Information [Line Items] | |
| Entity, Registrant Name | OBLONG, INC. |
| Document, Type | 8-K |
| Document, Period End Date | Sep. 10, 2024 |
| Entity, Incorporation, State or Country Code | DE |
| Entity, File Number | 001-35376 |
| Entity, Tax Identification Number | 77-0312442 |
| Entity, Address, Address Line One | 110 16th Street |
| Entity, Address, Address Line Two | Suite 1400 - 1024 |
| Entity, Address, City or Town | Denver |
| Entity, Address, State or Province | CO |
| Entity, Address, Postal Zip Code | 80202 |
| City Area Code | 213 |
| Local Phone Number | 683-8863 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | OBLG |
| Security Exchange Name | NASDAQ |
| Entity, Emerging Growth Company | false |
| Amendment Flag | false |
| Entity, Central Index Key | 0000746210 |
