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Financing Arrangements (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
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Financing Arrangements [Abstract] |  |
Accounts receivables assigned to factor | $ 1,218 |
Advances to/(from) factor | 1,049 |
Amounts due from factor | 169 |
Unfactored accounts receivable | 715 |
Total accounts receivable | $ 884 |

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- Definition For unclassified balance sheet, amounts receivable assigned to factor. + References No definition available. + Details
Name: | crex_AccountsReceivableFactored
Namespace Prefix: | crex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Factored accounts receivable factored advance. + References No definition available. + Details
Name: | crex_AccountsReceivableFactoringAdvance
Namespace Prefix: | crex_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition For unclassified balance sheet, amounts receivable assigned to unfactor. + References No definition available. + Details
Name: | crex_AccountsReceivableNonFactored
Namespace Prefix: | crex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Carrying amount as of the balance sheet date of due from factor. + References No definition available. + Details
Name: | crex_AmoutDueFromFactor
Namespace Prefix: | crex_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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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 Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of account and note receivables due from other than related parties. + 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 210.5-02.3-4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AccountsAndNotesReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant