Statement of Stockholders' Equity [Parenthetical]	3 Months Ended
Mar. 31, 2017 $ / shares
Stock Issued During Period Rights Offering Per Share	$ 3.03
Warrants Issued During Period Rights Offering Per Share	0.97
Stock Issued During Period In Payment Of Accrued Compensation Per Share	3.60
Common stock for services per share issue one	4.85
Stock Issued During Period 2017 Board Services Per Share	$ 3.60

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

No definition available.

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The price per share of Stock issued during the period 2017 board services per share.

No definition available.

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The price per share of warrants issued during in payment of accrued compensation per share.

No definition available.

Name:	clir_StockIssuedDuringPeriodInPaymentOfAccruedCompensationPerShare
Namespace Prefix:	clir_
Data Type:	num:perShareItemType
Balance Type:	na
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The price per share of Stock issued during the period rights offering per share.

No definition available.

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

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

No definition available.

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