Schedule III - Real Estate and Accumulated Depreciation (Details Textual)	Dec. 31, 2019 USD ($)
Real Estate Investment Property, Aggregate Cost for Federal Tax Purposes	$ 826,050

Represents the aggregate cost, for federal tax purposes, of real estate assets.

No definition available.

Name:	clpr_RealEstateInvestmentPropertyAggregateCostForFederalTaxPurposes
Namespace Prefix:	clpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant