Amount of increase (decrease) in operating lease, right of use assets.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Represents monthly rent expense. Excludes triple net operating costs.

+ References

No definition available.

+ Details

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

- Definition

Represents short term of monthly rent expense.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Represents percentage of Annual rent expense increase. Excludes triple net operating costs.

+ References

No definition available.

+ Details

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- Definition

Amount of expense recognized during the period for restoration cost.

+ References

No definition available.

+ Details

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

- 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

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+ Details

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- Definition

Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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Balance Type:	debit
Period Type:	duration

- Details

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- Details

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Fixed Assets, Net - Leases (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Oct. 23, 2023
Leases
Increase (decrease) in operating lease right of use asset		$ 32	$ 34
Restoration expense		0	33
Operating lease cost		$ 97	$ 141
CHINA
Leases
Renewal option term		13 months	13 months
Short term monthly rent expense		$ 3	$ 3
Seattle and Tulsa
Leases
Short term monthly rent expense	$ 2
Agreement expiration term (in years)	12 months
Short term lease expense		$ 22	5
Annual rent expense, increase (in percent)		2.00%
Monthly rent expense		$ 10
Short-term lease cost		$ 22	$ 5
Minimum \| Seattle and Tulsa
Leases
Remaining term (in years)				12 months
Maximum \| Seattle and Tulsa
Leases
Remaining term (in years)				3 years