Area of land held for sale.

No definition available.

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- Definition

Area of land owned.

+ References

No definition available.

+ Details

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Namespace Prefix:	cto_
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- Definition

Number of commercial loan investment.

+ References

No definition available.

+ Details

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Namespace Prefix:	cto_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of commercial properties.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of contractual base rent received from tenants during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	cto_
Data Type:	num:percentItemType
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Period Type:	duration

- Definition

Area of Subsurface Area of Portfolio Of Mineral Interest.

+ References

No definition available.

+ Details

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Namespace Prefix:	cto_
Data Type:	xbrli:integerItemType
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Period Type:	instant

- Definition

Area of land held.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770

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- Details

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Data Type:	na
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Data Type:	na
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Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=cto_CommercialRealEstateSingleTenantMember
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Data Type:	na
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DESCRIPTION OF BUSINESS (Details) $ in Thousands	3 Months Ended
DESCRIPTION OF BUSINESS (Details) $ in Thousands	Mar. 31, 2021 USD ($) ft² a loan property county	Dec. 31, 2020 USD ($)	Mar. 31, 2020 ft²	Nov. 26, 2019 USD ($)
Real Estate Properties
Gross leasable space \| ft²	329,987		522,681
Area of land (in acres)	25,000
Number of commercial loan investment \| loan	1
Estimated Fair Value (Level 1 and 2 Inputs) \| $	$ 35,408	$ 30,574
Percentage of contractual base rent received	100.00%
Pine
Real Estate Properties
Estimated Fair Value (Level 1 and 2 Inputs) \| $	$ 35,400			$ 38,800
Percentage of investment in PINE	22.40%	22.40%
Stock split ratio	1
Mitigation Bank
Real Estate Properties
Area of land owned	2,500
Percentage of investment in PINE	30.00%
Florida
Real Estate Properties
Subsurface area of portfolio of mineral interests	429,000
Number of countries \| county	20
Commercial loan and master lease investments
Real Estate Properties
Number of commercial loan investment \| loan	1
Number of commercial properties \| property	2
Commercial
Real Estate Properties
Number of real estate properties \| property	27
Number of states in which entity operates \| county	12
Gross leasable space \| ft²	2,800,000
Single-tenant
Real Estate Properties
Number of real estate properties \| property	20
Multi-tenant
Real Estate Properties
Number of real estate properties \| property	7
Undeveloped land \| Land JV
Real Estate Properties
Area of land held for sale	1,600
Undeveloped land \| Daytona Beach, FL
Real Estate Properties
Area of land (in acres)	1,600