| Cover | Mar. 20, 2024 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Mar. 20, 2024 |
| Entity Registrant Name | OBLONG, INC. |
| 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, par value $0.0001 per share |
| Trading Symbol | OBLG |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000746210 |
| Amendment Flag | false |
