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Marketable Securities - Available-for-sale Securities by Major Security Type (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Amortized cost	$ 1,356	$ 4,412
Gross unrealized holding gains	4	7
Gross unrealized holding losses	(2)	(23)
Estimated fair value	1,358	4,396
US Treasury securities [Member]
Marketable Securities [Line Items]
Amortized cost		1,804
Gross unrealized holding gains		0
Gross unrealized holding losses		(1)
Estimated fair value		1,803
Mutual Funds [Member]
Marketable Securities [Line Items]
Amortized cost	1,150	1,498
Gross unrealized holding gains	4	7
Gross unrealized holding losses	(2)	0
Estimated fair value	1,152	1,505
Certificates of Deposit [Member]
Marketable Securities [Line Items]
Amortized cost	206	103
Gross unrealized holding gains	0	0
Gross unrealized holding losses	0	0
Estimated fair value	$ 206	103
Corporate debt securities [Member]
Marketable Securities [Line Items]
Amortized cost		1,007
Gross unrealized holding gains		0
Gross unrealized holding losses		(22)
Estimated fair value		$ 985

X

- Definition

The amount of accumulated gross unrealized gain on investment in marketable securities classified as available-for-sale securities.

+ References

No definition available.

+ Details

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Namespace Prefix:	clro_
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Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of accumulated gross unrealized loss on investment in marketable securities classified as available-for-sale securities.

+ References

No definition available.

+ Details

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Namespace Prefix:	clro_
Data Type:	xbrli:monetaryItemType
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X

- Definition

The amount of amortized cost of marketable securities classified as available-for-sale securities.

+ References

No definition available.

+ Details

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Namespace Prefix:	clro_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

Amount of investment in marketable security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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