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Revenue Recognition (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Revenue Recognition [Abstract] [Standard Label]
Aggregate amounI	$ 0	$ 35

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- Definition

Aggregate AmounI.

+ References

No definition available.

+ Details

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

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- References

No definition available.

+ Details

Name:	us-gaap_RevenueRecognitionAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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