Note 3 - Deferred Costs and Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Amortization of Lease Origination Costs and In-place Lease Intangible Assets	$ 35	$ 26
Amortization of Real Estate Abatements	$ 120	$ 120

The aggregate expense charged against earnings to allocate the lease origination costs and in-place lease intangible assets.

No definition available.

Name:	clpr_AmortizationOfLeaseOriginationCostsAndInPlaceLeaseIntangibleAssets
Namespace Prefix:	clpr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration