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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Condensed Consolidated Statements of Stockholders' Equity |  |
Common stock for services per share issue one | $ 1.44 | $ 3.50
Common Stock For Services Per Share Issue Two | $ 1.03 | 1.44
Stock Issued During Period Board Services Per Share |  | 1.85
Share price of shares issued in offering (in dollars per share) |  | $ 2.25

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- Definition Per share value of common share granted (first issue) during the period for services. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Per share value of common share granted during the period for services. + References No definition available. + Details
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Namespace Prefix: | clir_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Definition Per share or per unit amount of equity securities issued in offering. + References No definition available. + Details
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Namespace Prefix: | clir_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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- Definition The price per share of stock issued during the period for board services. + References No definition available. + Details
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Namespace Prefix: | clir_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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