The number of states the entity owns real estate properties in as of the balance sheet date.

No definition available.

Name:	cdor_NumberOfStateInWhichEntityOwnsRealEstateProperties
Namespace Prefix:	cdor_
Data Type:	xbrli:positiveIntegerItemType
Balance Type:	na
Period Type:	duration

- Definition

Stock Issued During Period, Fractional Shares, Reverse Stock Splits

+ References

No definition available.

+ Details

Name:	cdor_StockIssuedDuringPeriodFractionalSharesReverseStockSplits
Namespace Prefix:	cdor_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- 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=27012166&loc=d3e187143-122770

+ Details

Name:	us-gaap_StockholdersEquityNoteStockSplitConversionRatio1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingAndBuildingImprovementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cdor_AtlantaJointVentureMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=cdor_CondorHospitalityLimitedPartnershipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Organization and Summary of Significant Accounting Policies (Narrative) (Details)		9 Months Ended	12 Months Ended
	Mar. 15, 2017 shares	Sep. 30, 2018 property state	Dec. 31, 2017
Number of hotels		16
Number of states the entity owns hotels \| state		8
Reverse stock split, conversion ratio	0.1538
Reverse stock split, fractional shares issued \| shares	0
Building And Improvements [Member] \| Minimum [Member]
Estimated useful life		15 years
Building And Improvements [Member] \| Maximum [Member]
Estimated useful life		40 years
Furniture And Equipment [Member] \| Minimum [Member]
Estimated useful life		3 years
Furniture And Equipment [Member] \| Maximum [Member]
Estimated useful life		12 years
Atlanta Joint Venture [Member]
Number of hotels		1
Ownership percentage		80.00%
Condor Hospitality Limited Partnership [Member]
Ownership percentage		99.40%	99.30%