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Condensed Consolidated Statements of Equity (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Condensed Consolidated Statements of Equity
Common stock for services per share issue one	$ 1.03	$ 1.44

X

- Definition

Per share value of common share granted (first issue) during the period for services.

+ References

No definition available.

+ Details

Name:	clir_CommonStockForServicesPerShareIssueOne
Namespace Prefix:	clir_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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