Asset Retirement Obligation (Reconciliation of The Beginning And Ending Aggregate Carrying Amounts Of The Asset Retirement Obligation) (Parenthetical) (Detail) (USD $)	12 Months Ended
Dec. 31, 2007
Asset Retirement Obligation Disclosure [Line Items]
Undiscounted and not adjusted for inflation	$ 41,000

The payment of Initial estimated remediation costs (undiscounted and not adjusted for inflation) assumptions used for estimating obligation.

No definition available.

Name:	cylu_PaymentOfInitialEstimatedRemediationCosts
Namespace Prefix:	cylu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration