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Note 10 - Related Party Transaction (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Operating Lease, Expense | $ 1,339,000 | $ 1,323,000
ISC Properties LLC [Member] |  |
Related Party Ownership Percentage | 100.00% |
Operating Lease, Expense | $ 357,000 | $ 333,000

X
- Definition Related party ownership percentage. + References No definition available. + Details
Name: | ccrd_RelatedPartyOwnershipPercentage
Namespace Prefix: | ccrd_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-4 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=ccrd_IscPropertiesLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |