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Debt (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total debt, Principal	$ 3,366	$ 7,773
Total debt, Unamortized amount		(49)
Total debt	3,366	7,724
Less: debt - current, Principal	(3,366)	(4,857)
Less: debt - current, Unamortized Discount		29
Less: debt - current	(3,366)	(4,828)
Debt - non-current, Principal		2,916
Debt - non-current, Unamortized Discount		(20)
Debt - non-current		2,896
Comerica - Growth Capital Loan A, due 2015
Debt Instrument [Line Items]
Total debt, Principal		4,583
Total debt, Unamortized amount		(49)
Total debt		4,534
Comerica - Revolving Line of Credit, due 2014
Debt Instrument [Line Items]
Total debt, Principal	3,366	3,190
Total debt	$ 3,366	$ 3,190

X

- Definition

Current portion carrying value of the debt instrument before deducting unamortized discounts (if any).

+ References

No definition available.

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- Definition

Non-current portion carrying value of the debt instrument before deducting unamortized discounts (if any).

+ References

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- Definition

Current portion of the unamortized discounts on the debt instrument.

+ References

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- Definition

Non-current portion of the unamortized discounts on the debt instrument.

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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-Publisher FASB

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

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Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

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