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Note 9 - Commitments and Contingencies (Details Textual) - Alleged Breach of Contract Related to Hardware Failures of Equipment Installations Performed by Allure [Member] - USD ($) $ in Thousands	Mar. 10, 2023	Oct. 10, 2019
Loss Contingency, Damages Sought, Value		$ 3,200
Litigation Settlement, Amount Awarded to Other Party	$ 733
Litigation Settlement, Amount Awarded to Other Party, Covered by Insurance	700
Litigation Settlement, Amount Awarded to Other Party, Not Covered by Insurance	$ 33

X

- Definition

Represents the amount covered by insurance of the total amount awarded to other party in judgement or settlement of litigation.

+ References

No definition available.

+ Details

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Namespace Prefix:	crex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the amount not covered by insurance for total amount awarded to other party in judgement or settlement of litigation.

+ References

No definition available.

+ Details

Name:	crex_LitigationSettlementAmountAwardedToOtherPartyNotCoveredByInsurance
Namespace Prefix:	crex_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-9

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Balance Type:	debit
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X

- Details

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Namespace Prefix:
Data Type:	na
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