Asset Impairment Charges, Prior Trigger Event.

No definition available.

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Namespace Prefix:	cto_
Data Type:	xbrli:monetaryItemType
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- 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

Name:	cto_ImpairmentOfLongLivedAssetsLineItems
Namespace Prefix:	cto_
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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

+ Details

Name:	us-gaap_AssetImpairmentCharges
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnDispositionOfAssets1
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

After tax earnings per share or per unit impact arising from asset impairment.

+ References

No definition available.

+ Details

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- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cto_UndevelopedLandInDaytonaBeachFloridaAlongInterstate95Member
Namespace Prefix:
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Balance Type:
Period Type:

IMPAIRMENT OF LONG-LIVED ASSETS (Details) - USD ($)	3 Months Ended						12 Months Ended
IMPAIRMENT OF LONG-LIVED ASSETS (Details) - USD ($)	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Impairment of Long-Lived Assets
Gain on Disposition of Assets	$ 1,108,269	$ 2,187,332	$ 11,811,907	$ 6,869,957	$ 18,384,808	$ 3,650,858	$ 21,977,465	$ 22,035,666	$ 38
Golf Operations
Impairment of Long-Lived Assets
Impairment Charges								$ 1,100,000
Impairment charge (in dollars per share)								$ 0.15
Total asset impairment								$ 3,100,000
Gain on Disposition of Assets	$ 15,000
Undeveloped Land in Daytona Beach, Florida, Along Interstate 95
Impairment of Long-Lived Assets
Impairment Charges							$ 0	$ 0	$ 0