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Condensed Consolidated Statements of Stockholders' Equity [Parenthetical] - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Common stock for services per share issue one	$ 1.44	$ 3.50
Stock Issued During Period Rights Offering Per Share		$ 2.25

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

X

- Definition

The price per share of Stock issued during the period rights offering per share.

+ References

No definition available.

+ Details

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