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Revenue (Details 3) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Revenue, Revenue Recognized	$ 30,481,000
Telecommunications Services
Deferred Revenue, Revenue Recognized	30,841,000	$ 439,000	$ 2,165,000	$ 4,967,000	$ 7,699,000	$ 11,306,000
Desktop Devices
Deferred Revenue, Revenue Recognized	$ 242,000	$ 0	$ 0	$ 0	$ 0	$ 0

X

- Definition

Amount of revenue recognized that was previously reported as deferred or unearned revenue.

+ References

No definition available.

+ Details

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Balance Type:	credit
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsegmentsAxis=crex_DesktopDevicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: