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Supplemental disclosure of non-cash operating and financing activities: (USD $) | 12 Months Ended
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Dec. 31, 2014
Warrants Authorized For Issuance To Acquire Common Stock Value | $ 92,000 clir_WarrantsAuthorizedForIssuanceToAcquireCommonStockValue
Warrants Authorized For Issuance To Acquire Common Stock Shares Number | 20,313 clir_WarrantsAuthorizedForIssuanceToAcquireCommonStockSharesNumber
July 2014 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | 10,000 us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_VestingAxis = clir_July2014Member
Shares Issued, Price Per Share | $ 2.20 us-gaap_SharesIssuedPricePerShare / us-gaap_VestingAxis = clir_July2014Member
Sale of Stock, Price Per Share | $ 8.93 us-gaap_SaleOfStockPricePerShare / us-gaap_VestingAxis = clir_July2014Member
Stock Issued During Period, Shares, Other | 7,537 us-gaap_StockIssuedDuringPeriodSharesOther / us-gaap_VestingAxis = clir_July2014Member

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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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