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Business Combinations Business Combinations, Consideration Transferred (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 0 Months Ended
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Mar. 07, 2014 | Apr. 01, 2014
Sabine, Inc. [Member] |  |
Business Acquisitions, Consideration Transferred [Line Items] |  |
Business Combination, Consideration Transferred | $ 10,477 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = clro_SabineInc.Member |
Sabine, Inc. [Member] | Cash [Member] |  |
Business Acquisitions, Consideration Transferred [Line Items] |  |
Business Combination, Consideration Transferred | 8,141 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = clro_SabineInc.Member / us-gaap_ContingentConsiderationByTypeAxis = us-gaap_CashMember |
Sabine, Inc. [Member] | Restricted Stock [Member] |  |
Business Acquisitions, Consideration Transferred [Line Items] |  |
Business Combination, Consideration Transferred | 1,679 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = clro_SabineInc.Member / us-gaap_ContingentConsiderationByTypeAxis = us-gaap_RestrictedStockMember |
Sabine, Inc. [Member] | Reserve for Earn-out Receivable [Member] |  |
Business Acquisitions, Consideration Transferred [Line Items] |  |
Business Combination, Consideration Transferred | 657 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = clro_SabineInc.Member / us-gaap_ContingentConsiderationByTypeAxis = us-gaap_ReserveForEarnOutReceivableMember |
Spontania [Member] |  |
Business Acquisitions, Consideration Transferred [Line Items] |  |
Business Combination, Consideration Transferred |  | $ 5,100 us-gaap_BusinessCombinationConsiderationTransferred1 / us-gaap_BusinessAcquisitionAxis = clro_SpontaniaMember
Restricted Stock [Member] | Sabine, Inc. [Member] |  |
Business Acquisitions, Consideration Transferred [Line Items] |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | 150,000 us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockMember / us-gaap_BusinessAcquisitionAxis = clro_SabineInc.Member |

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- Definition Number of shares of equity interests issued or issuable to acquire entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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