| Document and Entity Information | Sep. 02, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 2, 2021 |
| Entity Registrant Name | Ooma, Inc |
| Entity Central Index Key | 0001327688 |
| Entity Emerging Growth Company | false |
| Entity File Number | 001-37493 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 06-1713274 |
| Entity Address, Address Line One | 525 Almanor Avenue |
| Entity Address, Address Line Two | Suite 200 |
| Entity Address, City or Town | Sunnyvale |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94085 |
| City Area Code | 650 |
| Local Phone Number | 566-6600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, par value $0.0001 |
| Trading Symbol | OOMA |
| Security Exchange Name | NYSE |
