LAND AND SUBSURFACE INTERESTS - Other Real Estate Assets (Details) - USD ($)	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Land and development costs and subsurface interests
Impact fees	$ 214,000		$ 402,000
Mitigation credits	600,000		723,000
Impact Fee and Mitigation Credits	814,033		$ 1,125,269
Cash payments received for impact fees	116,000	$ 217,000
LandShark Bar and Grill
Land and development costs and subsurface interests
Cash payments received for impact fees	72,000
Real Estate Operations \| Buc'ees - East of I-95
Land and development costs and subsurface interests
Mitigation credits transferred	$ 124,000

The combined cost basis of impact fee credits and mitigation credits as of the balance sheet date.

No definition available.

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Namespace Prefix:	cto_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the cost basis of impact fee credits, as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	cto_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the cost basis of mitigation credits as of the balance sheet date.

+ References

No definition available.

+ Details

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

- Definition

Represents the cost basis of mitigation credits transferred to expense, which were utilized to resolve required mitigation activities.

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No definition available.

+ Details

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Namespace Prefix:	cto_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cash received from impact fee credits during the current period.

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No definition available.

+ Details

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Namespace Prefix:	cto_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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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Period Type:	duration

- Details

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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