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Area of land held.

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Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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The amount for notes payable (written promise to pay), due to related parties.

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Related-Party Transactions (Details)	3 Months Ended		6 Months Ended		12 Months Ended
Related-Party Transactions (Details)	Apr. 30, 2020 USD ($) shares	Apr. 30, 2019 USD ($)	Apr. 30, 2020 USD ($) shares	Apr. 30, 2019 USD ($)	Oct. 31, 2013 USD ($) a	Oct. 31, 2019 USD ($)
Employees \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	$ 0		$ 0			$ 0
Other Assets	0		0			0
Accounts Payable	0		0			0
Payables to Related Parties	0		0			0
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	193,000	$ 182,000	390,000	$ 360,000
Other Income, Net	0	0	0	0
Dividends Paid	0	0	0	0
Rental payments due from employees	0		0			0
Employees \| Affiliated Entity \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	0	0	0	0
Agribusiness Expense and Other	0	0	0	0
Mutual water companies \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	0		0			0
Other Assets	501,000		501,000			473,000
Accounts Payable	38,000		38,000			11,000
Payables to Related Parties	0		0			0
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	0	0	0	0
Other Income, Net	0	0	0	0
Dividends Paid	0	0	0	0
Mutual water companies \| Affiliated Entity \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	0	0	0	0
Agribusiness Expense and Other	117,000	77,000	464,000	398,000
Cooperative association \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	0		0			0
Other Assets	0		0			0
Accounts Payable	103,000		103,000			35,000
Payables to Related Parties	0		0			0
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	0	0	0	0
Other Income, Net	0	0	0	0
Dividends Paid	0	0	0	0
Cooperative association \| Affiliated Entity \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	0	0	0	0
Agribusiness Expense and Other	447,000	540,000	893,000	856,000
Calavo \| Beneficial Owner
Balance Sheet
Receivable/Other from Related Parties	403,000		403,000			0
Other Assets	0		0			0
Accounts Payable	1,000		1,000			0
Payables to Related Parties	0		0			0
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	84,000	80,000	165,000	159,000
Other Income, Net	0	0	220,000	250,000
Dividends Paid	126,000	126,000	252,000	255,000
Calavo \| Beneficial Owner \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	1,539,000	540,000	1,572,000	543,000
Agribusiness Expense and Other	59,000	0	178,000	1,000
Third-party growers \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	0		0			0
Other Assets	0		0			0
Accounts Payable	0		0			0
Payables to Related Parties	0		0			0
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	0	0	0	0
Other Income, Net	0	0	0	0
Dividends Paid	0	0	0	0
Third-party growers \| Affiliated Entity \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	0	0	0	0
Agribusiness Expense and Other	0	232,000	0	609,000
Cadiz / Fenner / WAM \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	0		0			0
Other Assets	1,480,000		1,480,000			0
Accounts Payable	0		0			0
Payables to Related Parties	134,000		134,000			0
Other Long-Term Liabilities	1,390,000		1,390,000			0
Consolidated Statement of Operations
Net Revenue Rental Operations	0	0	0	0
Other Income, Net	0	0	0	0
Dividends Paid	0	0	0	0
Area of land (in acres) \| a					670
Annual base rental per planted acre					$ 200
Percent of gross revenues paid as annual base rental					20.00%
Maximum annual base rental per planted acre					$ 1,200
Cadiz / Fenner / WAM \| Affiliated Entity \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	0	0	0	0
Agribusiness Expense and Other	70,000	22,000	171,000	88,000
Colorado River Growers \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	297,000		297,000			376,000
Other Assets	0		0			0
Accounts Payable	0		0			0
Payables to Related Parties	0		0			0
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	0	0	0	0
Other Income, Net	0	0	0	0
Dividends Paid	0	0	0	0
Colorado River Growers \| Affiliated Entity \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	1,000	0	522,000	306,000
Agribusiness Expense and Other	337,000	0	5,337,000	3,841,000
YMIDD \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	0		0			0
Other Assets	0		0			0
Accounts Payable	0		0			0
Payables to Related Parties	0		0			0
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	0	0	0	0
Other Income, Net	0	0	0	0
Dividends Paid	0	0	0	0
YMIDD \| Affiliated Entity \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	0	0	0	0
Agribusiness Expense and Other	53,000	53,000	86,000	85,000
FGF \| Co-venturer
Balance Sheet
Receivable/Other from Related Parties	3,776,000		3,776,000			2,609,000
Other Assets	0		0			0
Accounts Payable	0		0			0
Payables to Related Parties	835,000		835,000			906,000
Other Long-Term Liabilities	0		0			0
Consolidated Statement of Operations
Net Revenue Rental Operations	0	0	0	0
Dividends Paid	0	0	0	0
FGF \| Co-venturer \| Agribusiness
Consolidated Statement of Operations
Net Revenue Agribusiness	2,280,000	0	2,479,000	0
Agribusiness Expense and Other	2,270,000	$ 0	2,433,000	$ 0
LLCB
Balance Sheet
Accounts Payable	2,850,000		2,850,000			1,200,000
LLCB \| Affiliated Entity
Balance Sheet
Receivable/Other from Related Parties	1,800,000		1,800,000			0
Other Assets	0		0			0
Accounts Payable	0		0			0
Payables to Related Parties	2,850,000		2,850,000			0
Other Long-Term Liabilities	$ 0		$ 0			$ 1,200,000
Limoneira Company Series B-2 Convertible Preferred Stock \| Affiliate Of Water Asset Management, LLC
Consolidated Statement of Operations
Shares of Series B-2 convertible preferred stock held (in shares) \| shares	9,300		9,300