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v2.4.1.9

Stockholders' Equity (Details) (Equity Incentive Plan [Member]) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Equity Incentive Plan [Member] |  |
Class of Stock [Line Items] |  |
Reserved but unissued shares under the Plan | 249,736 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | 480,260 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember
Increases in the number of authorized shares under the Plan | 85,705 clir_IncreaseInNumberOfAuthorizedShares / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | 5,866 clir_IncreaseInNumberOfAuthorizedShares / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember
Grants of stock options | (141,880)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | (206,390)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember
Stock option forfeitures | 24,688 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | 0 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember
Exercise of stock options | 39,140 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | 0 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember
Stock grants | (14,625)clir_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockGrantsInPeriod / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | (30,000)clir_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockGrantsInPeriod / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember
Stock grant forfeitures | 0 clir_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockGrantsForfeitedInPeriod / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | 0 clir_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockGrantsForfeitedInPeriod / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember
Reserved but unissued shares under the Plan | 242,764 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember | 249,736 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber / us-gaap_AwardTypeAxis = clir_EquityIncentivePlanMember

X
- Definition The increase in number of authorized shares under the plan during the period. + References No definition available. + Details
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Period Type: | duration

X
- Definition The number of stock grants forfeited during the period. + References No definition available. + Details
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- Definition The number of stock grants during the period. + References No definition available. + Details
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- Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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