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Financing Arrangements (Details Textual) - USD ($) | Oct. 15, 2015 | Dec. 31, 2015
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Financing Arrangements [Abstract] |  |
Accounts receivable maximum amount | $ 3,000,000 |
Factoring agreement base discount percentage | 1.10% |
Additional discount percentage | 0.037% |
Termination fee |  | $ 37,500

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- Definition Accounts receivable maximum amount. + References No definition available. + Details
Name: | crex_AccountsReceivableMaximumAmount
Namespace Prefix: | crex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Factoring agreement Additional discount added percentage. + References No definition available. + Details
Name: | crex_AdditionalDiscountPercentage
Namespace Prefix: | crex_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Factoring agreement base discount percentage. + References No definition available. + Details
Name: | crex_FactoringAgreementBaseDiscountPercentage
Namespace Prefix: | crex_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Financing Arrangements. + References No definition available. + Details
Name: | crex_FinancingArrangementsAbstract
Namespace Prefix: | crex_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of the fee that accompanies borrowing money under the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentFeeAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant