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Income Taxes (Details Textual) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Tax Contingency [Line Items]    
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate  
Limitation In Carry Forward Percentage Of Net Operating Loss 50.00%clir_LimitationInCarryForwardPercentageOfNetOperatingLoss  
Percentage Of Valuation Allowance Against Deferred Tax Assets 100.00%clir_PercentageOfValuationAllowanceAgainstDeferredTaxAssets  
Net Operating Losses For Tax Purposes $ 20,100,000clir_NetOperatingLossesForTaxPurposes  
Operating Loss Carryforward Expiration Date The net operating loss carry forward may be used to reduce taxable income through the years 2028 to 2034.  
Deferred Tax Assets, Net of Valuation Allowance $ 0us-gaap_DeferredTaxAssetsNet $ 0us-gaap_DeferredTaxAssetsNet