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v2.4.1.9

Stockholders' Equity (Details 5) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Effect on net loss | $ 339,000 clir_ShareBasedCompensationEffectOnNetLoss | $ 115,000 clir_ShareBasedCompensationEffectOnNetLoss
Effect on net loss per share (in dollars per share) | $ 0.04 clir_ShareBasedCompensationEffectOfNetLossPerShare | $ 0.01 clir_ShareBasedCompensationEffectOfNetLossPerShare
Research and development [Member] |  |
Effect on net loss | 99,000 clir_ShareBasedCompensationEffectOnNetLoss / us-gaap_IncomeStatementLocationAxis = us-gaap_ResearchAndDevelopmentExpenseMember | 42,000 clir_ShareBasedCompensationEffectOnNetLoss / us-gaap_IncomeStatementLocationAxis = us-gaap_ResearchAndDevelopmentExpenseMember
General and administrative [Member] |  |
Effect on net loss | $ 240,000 clir_ShareBasedCompensationEffectOnNetLoss / us-gaap_IncomeStatementLocationAxis = us-gaap_GeneralAndAdministrativeExpenseMember | $ 73,000 clir_ShareBasedCompensationEffectOnNetLoss / us-gaap_IncomeStatementLocationAxis = us-gaap_GeneralAndAdministrativeExpenseMember

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- Details
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