| Document and Entity Information - USD ($) $ in Billions | 12 Months Ended | ||
| Oct. 31, 2019 | Nov. 30, 2019 | Apr. 30, 2019 | |
| Document and Entity Information | |||
| Document Type | 10-K/A | ||
| Document Annual Report | true | ||
| Document Period End Date | Oct. 31, 2019 | ||
| Document Transition Report | false | ||
| Entity File Number | 000-33385 | ||
| Entity Registrant Name | CALAVO GROWERS, INC | ||
| Entity Incorporation, State or Country Code | CA | ||
| Entity Tax Identification Number | 33-0945304 | ||
| Entity Address, Address Line One | 1141-A Cummings Road | ||
| Entity Address, City or Town | Santa Paula | ||
| Entity Address, State or Province | CA | ||
| Entity Address, Postal Zip Code | 93060 | ||
| City Area Code | 805 | ||
| Local Phone Number | 525-1245 | ||
| Title of 12(b) Security | Common Stock | ||
| Trading Symbol | CVGW | ||
| Security Exchange Name | NASDAQ | ||
| Entity Well-known Seasoned Issuer | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Interactive Data Current | Yes | ||
| Entity Filer Category | Large Accelerated Filer | ||
| Entity Small Business | false | ||
| Entity Emerging Growth Company | false | ||
| Entity Shell Company | false | ||
| Entity Public Float | $ 1.5 | ||
| Entity Common Stock, Shares Outstanding | 17,594,621 | ||
| Entity Central Index Key | 0001133470 | ||
| Current Fiscal Year End Date | --10-31 | ||
| Document Fiscal Year Focus | 2019 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | false |
