The increase to the number of shares of common stock to purchase of the warrants.

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The amount by which the convertible debt's if-converted value less its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only.

+ References

No definition available.

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The number of equity instruments that the holder of the subordinated debt instrument would receive if the subordinated debt was converted to equity.

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No definition available.

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- Definition

The issuance of subordinated term loan.

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No definition available.

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- Definition

Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants.

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-Glossary Warrant

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Exercise price per share or per unit of warrants or rights outstanding.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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The price per share of the conversion feature embedded in the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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Amount of the required periodic payments applied to principal.

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General discussion of the entity's interest rate cash flow hedge activities.

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- Definition

Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Percentage of an entity's outstanding debt that is designated as a hedged item in cash flow, fair value, or net investment hedge.

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No definition available.

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Price of a single share of a number of saleable stocks of a company.

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No definition available.

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Stated interest rate of the subordinated debt.

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No definition available.

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Notes Payable (Additional Information) (Detail) (USD $)	12 Months Ended			1 Months Ended
Notes Payable (Additional Information) (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 19, 2013	Jul. 29, 2010	Dec. 31, 2010	Dec. 19, 2013
Notes Payable [Line Items]
Long term debt maturities, 2015	$ 6,005,000
Description of Interest Rate Cash Flow Hedge Activities	The total interest rate on the swapped portion of the Term Loan was changed from 6.53% to 6.25% on December 19, 2013 and was 6.25% at December 31, 2014. Interest on the remaining 40% of the Term Loan that was not subject to an interest rate hedging relationship was at 6.25% at December 31, 2014 and at December 31, 2013. The Term Loan is collateralized by all of the assets of CTI (except CTI’s equity interests in CTSAS, of which only 65% is collateral of the Term Loan) and is guaranteed by Cyalume.
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 0.01
Amendment and adjustment to the fair value of warrants issued in conjunction with issuance of subordinated term loan recorded within warrant liability	0	(241,000)	94,000
Amortization of Debt Discount (Premium)	205,000	520,000
Common Stock To Purchase Of Warrants	25,000cylu_CommonStockToPurchaseOfWarrants	455,514cylu_CommonStockToPurchaseOfWarrants
Debt Instrument, Face Amount	9,676,000us-gaap_DebtInstrumentFaceAmount	8,659,000us-gaap_DebtInstrumentFaceAmount
Promissory Notes Payable [Member]
Notes Payable [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				2.00%
Debt Instrument, Periodic Payment				215,000
Debt Instrument, Face Amount				1,075,000
Subordinated Term Loan [Member]
Notes Payable [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights						160,000
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 1.50
Amendment and adjustment to the fair value of warrants issued in conjunction with issuance of subordinated term loan recorded within warrant liability	(207,000)
Debt Instrument, Interest Rate, Effective Percentage	13.00%
Subordinated Term Loan [Member] \| Before Amendment [Member]
Notes Payable [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	17.00%
Term Loan [Member]
Notes Payable [Line Items]
Debt Instrument, Periodic Payment, Principal	148,000
Long term debt maturities, 2015	2,500,000
Debt Instrument, Interest Rate, Stated Percentage	6.25%
Term Loan [Member] \| Maximum [Member]
Notes Payable [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.53%
Term Loan [Member] \| Minimum [Member]
Notes Payable [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.25%
Swapped Portion Of Term Loan [Member]
Notes Payable [Line Items]
Percentage of Debt Hedged by Interest Rate Derivatives	60.00%
Real Estate Loan [Member]
Notes Payable [Line Items]
Debt Instrument, Periodic Payment, Principal	10,000
Long term debt maturities, 2015	1,400,000
Debt Instrument, Interest Rate, Stated Percentage	6.25%
Real Estate Loan [Member] \| Maximum [Member]
Notes Payable [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.42%
Real Estate Loan [Member] \| Minimum [Member]
Notes Payable [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.25%
Granite Creek Partners Agent Llc [Member]
Notes Payable [Line Items]
Subordinated Borrowing, Interest Rate					11.00%
Debt Instrument Convertible Number Of Equity Instrument					2,666,667
Share Price	$ 0.05
Debt Instrument, Convertible, Conversion Price					$ 3.19
Debt Instrument Convertible If Converted Value Less Than Principal	100,000
Impaired Financing Receivable, Unpaid Principal Balance, Total	9,500,000
Issuance Of Loan					8,500,000
Debt Instrument, Face Amount			$ 8,500,000