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Business Description, Basis of Presentation and Significant Accounting Policies - Deferred Revenue and Associated Costs of Goods Sold and Gross Profit (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Business Description, Basis of Presentation and Significant Accounting Policies
Deferred revenue	$ 17	$ 30
Deferred cost of goods sold	0	0
Deferred gross profit	$ 17	$ 30

X

- Definition

Amount of deferred cost of goods sold as of balance sheet date.

+ References

No definition available.

+ Details

Name:	clro_DeferredCostOfGoodsSold
Namespace Prefix:	clro_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of deferred gross profit as of balance sheet date.

+ References

No definition available.

+ Details

Name:	clro_DeferredGrossProfit
Namespace Prefix:	clro_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(26)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_DeferredRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration