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Accrued Liabilities Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Other Commitments [Line Items] |  |
Accrued Liabilities, Current | $ 2,694 us-gaap_AccruedLiabilitiesCurrent | $ 1,761 us-gaap_AccruedLiabilitiesCurrent
Other Current Liabilities [Member] |  |
Other Commitments [Line Items] |  |
Accrued Liabilities, Current | 340 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_OtherCurrentLiabilitiesMember | 783 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_OtherCurrentLiabilitiesMember
Dividend Declared [Member] |  |
Other Commitments [Line Items] |  |
Accrued Liabilities, Current | 914 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_DividendDeclaredMember | 0 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_DividendDeclaredMember
Marketing Incentive [Member] |  |
Other Commitments [Line Items] |  |
Accrued Liabilities, Current | 642 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = clro_MarketingIncentiveMember | 301 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = clro_MarketingIncentiveMember
Warranty Obligations [Member] |  |
Other Commitments [Line Items] |  |
Accrued Liabilities, Current | 331 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_WarrantyObligationsMember | 338 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_WarrantyObligationsMember
Other Liabilities [Member] |  |
Other Commitments [Line Items] |  |
Accrued Liabilities, Current | $ 467 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_OtherLiabilitiesMember | $ 339 us-gaap_AccruedLiabilitiesCurrent / us-gaap_OtherCommitmentsAxis = us-gaap_OtherLiabilitiesMember

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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