| Cover | May 05, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | May 5, 2021 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-35814 |
| Entity Registrant Name | HARROW HEALTH, INC. |
| Entity Central Index Key | 0001360214 |
| Entity Tax Identification Number | 45-0567010 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 102 Woodmont Blvd. |
| Entity Address, Address Line Two | Suite 610 |
| Entity Address, City or Town | Nashville |
| Entity Address, State or Province | TN |
| Entity Address, Postal Zip Code | 37205 |
| City Area Code | (615) |
| Local Phone Number | 733-4730 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value per share |
| Trading Symbol | HROW |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Information, Former Legal or Registered Name | Not Applicable |
