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Statement of Stockholders' Equity (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Balances at Dec. 31, 2012	$ 8,636,000us-gaap_StockholdersEquity	$ 1,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	$ 17,314,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	$ (8,679,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Balances (in shares) at Dec. 31, 2012		8,752,015us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Shares issued for services	150,000clir_StockIssuedDuringPeriodValueForServices	0clir_StockIssuedDuringPeriodValueForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	150,000clir_StockIssuedDuringPeriodValueForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0clir_StockIssuedDuringPeriodValueForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued for services (in shares)		30,000clir_StockIssuedDuringPeriodSharesForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Shares issued for services one	102,000clir_StockIssuedDuringPeriodValueForServicesOne	0clir_StockIssuedDuringPeriodValueForServicesOne / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	102,000clir_StockIssuedDuringPeriodValueForServicesOne / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0clir_StockIssuedDuringPeriodValueForServicesOne / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued for services one (in shares)		11,250clir_StockIssuedDuringPeriodSharesForServicesOne / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Shares issued upon exercise of warrant ($2.20 per share)	39,000clir_StockIssuedDuringPeriodValueExerciseOfWarrant	0clir_StockIssuedDuringPeriodValueExerciseOfWarrant / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	39,000clir_StockIssuedDuringPeriodValueExerciseOfWarrant / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0clir_StockIssuedDuringPeriodValueExerciseOfWarrant / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued upon exercise of warrant ($2.20 per share) (in shares)		17,409clir_StockIssuedDuringPeriodSharesExerciseOfWarrant / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Share based compensation	146,000us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	146,000us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Share based compensation (in shares)		0us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Net loss	(5,285,000)us-gaap_NetIncomeLoss	0us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	0us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	(5,285,000)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Balances at Dec. 31, 2013	3,788,000us-gaap_StockholdersEquity	1,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	17,751,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	(13,964,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Balances (in shares) at Dec. 31, 2013		8,810,674us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Shares issued for services	222,000clir_StockIssuedDuringPeriodValueForServices	0clir_StockIssuedDuringPeriodValueForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	222,000clir_StockIssuedDuringPeriodValueForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0clir_StockIssuedDuringPeriodValueForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued for services (in shares)		21,625clir_StockIssuedDuringPeriodSharesForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Shares issued in registered direct offering ($8.00 per share)	6,500,000clir_StockIssuedDuringPeriodValueRegisteredDirectOffering	0clir_StockIssuedDuringPeriodValueRegisteredDirectOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	6,500,000clir_StockIssuedDuringPeriodValueRegisteredDirectOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0clir_StockIssuedDuringPeriodValueRegisteredDirectOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued in registered direct offering ($8.00 per share) (in shares)		812,500clir_StockIssuedDuringPeriodSharesRegisteredDirectOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Issuance costs of registered direct offering	(812,000)clir_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsAssociatedWithInitialDirectOffering	0clir_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsAssociatedWithInitialDirectOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	(812,000)clir_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsAssociatedWithInitialDirectOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0clir_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCostsAssociatedWithInitialDirectOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Share based payments of warrants	92,000us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued	0us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	92,000us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued upon exercise of options ($2.20 per share)	35,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised	0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	35,000us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued upon exercise of options ($2.20 per share) (in shares)		23,337us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Shares issued upon exercise of options ($4.88 per share)	65,000clir_StockIssuedDuringPeriodValueStockOptionsExercisedOne	0clir_StockIssuedDuringPeriodValueStockOptionsExercisedOne / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	65,000clir_StockIssuedDuringPeriodValueStockOptionsExercisedOne / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0clir_StockIssuedDuringPeriodValueStockOptionsExercisedOne / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Shares issued upon exercise of options ($4.88 per share) (in shares)		13,340clir_StockIssuedDuringPeriodSharesStockOptionsExercisedOne / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Share based compensation	365,000us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation	0us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	365,000us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	0us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Share based compensation (in shares)		0us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Net loss	(7,296,000)us-gaap_NetIncomeLoss	0us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	0us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	(7,296,000)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Balances at Dec. 31, 2014	$ 2,959,000us-gaap_StockholdersEquity	$ 1,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	$ 24,218,000us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	$ (21,260,000)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Balances (in shares) at Dec. 31, 2014		9,681,476us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember

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Direct costs (e.g., legal and accounting fees) associated with stock issued in initial direct offering that is deducted from additional paid in capital. Also includes any direct costs associated with stock issues under a shelf registration.

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