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Geographic Sales Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 57,909us-gaap_SalesRevenueNet	$ 49,592us-gaap_SalesRevenueNet
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	39,598us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US	32,292us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = country_US
All other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 18,311us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = clro_RevenuefromNonUSCustomersMember	$ 17,300us-gaap_SalesRevenueNet / us-gaap_StatementGeographicalAxis = clro_RevenuefromNonUSCustomersMember

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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