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Note 9 - Related Party Transaction (Details Textual) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Related Party Ownership Percentage | 100.00% |
ISC Properties LLC [Member] |  |
Related Party Transaction, Expenses from Transactions with Related Party | $ 333,000 | $ 265,000

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- 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

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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
Name: | us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
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: |