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Statement of Stockholders' Equity [Parenthetical] (USD $)
3 Months Ended
Mar. 31, 2015
Stock issued during the period underwritten offering per share $ 5.85clir_StockIssuedDuringPeriodUnderwrittenOfferingPerShare
Common stock for services per share issue $ 5.97clir_CommonStockForServicesPerShareIssueOne
Stock issued during period par value exercise of options $ 2.20clir_StockIssuedDuringPeriodParValueExerciseOfOptions