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Note 8 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Mar. 31, 2022
Litigation Settlement, Expense | $ 2,700 |
Financing Receivable Deferred Payments |  | $ 600
Obligated to Provide Parking [Member] |  |
Other Commitment, Total |  | $ 205

X
- Definition Represents amount of financing receivable deferred payments. + References No definition available. + Details
Name: | clpr_FinancingReceivableDeferredPayments
Namespace Prefix: | clpr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
Name: | us-gaap_OtherCommitment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=clpr_ObligatedToProvideParkingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |