Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total debt, Principal	$ 30,000
Less: debt-current	(5,714)
Debt-non-current	24,138	$ 29,798
Cerus Term Loans
Debt Instrument [Line Items]
Total debt, Principal	30,000	30,000
Total debt, Unamortized Discount	(148)	(202)
Total debt	29,852	29,798
Less: debt - current, Principal	(5,714)
Less: debt-current	(5,714)
Debt - non-current, Principal	24,286	30,000
Debt - non-current, Unamortized Discount	(148)	(202)
Debt-non-current	$ 24,138	$ 29,798

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

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

+ References

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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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- Definition

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.

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- Definition

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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