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Balance Sheet Components - Components of Accrued Expenses and Other Current Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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|---|---|---|
| Payables and Accruals [Abstract] | ||
| Professional fees | $ 273us-gaap_AccruedProfessionalFeesCurrent | $ 175us-gaap_AccruedProfessionalFeesCurrent |
| Test sample processing fees | 318cdna_AccruedSampleProcessingFees | 195cdna_AccruedSampleProcessingFees |
| Accrued overpayments and refunds | 146cdna_AccruedOverPaymentsAndRefunds | 215cdna_AccruedOverPaymentsAndRefunds |
| Clinical Studies | 144cdna_AccruedClinicalAndCostOfOtherStudiesCurrent | 84cdna_AccruedClinicalAndCostOfOtherStudiesCurrent |
| Deferred rent - current portion | 202us-gaap_DeferredRentCreditCurrent | 145us-gaap_DeferredRentCreditCurrent |
| Capital leases - current portion | 70us-gaap_CapitalLeaseObligationsCurrent | 43us-gaap_CapitalLeaseObligationsCurrent |
| Other accrued expenses | 463us-gaap_OtherAccruedLiabilitiesCurrent | 191us-gaap_OtherAccruedLiabilitiesCurrent |
| Total accrued and other liabilities | $ 1,616us-gaap_AccruedLiabilitiesAndOtherLiabilities | $ 1,048us-gaap_AccruedLiabilitiesAndOtherLiabilities |
| X | ||||||||||
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- Definition
Accrued Clinical And Cost Of Other Studies Current No definition available.
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| X | ||||||||||
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- Definition
Accrued Over payments And Refunds No definition available.
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| X | ||||||||||
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- Definition
Accrued Sample Processing Fees No definition available.
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| X | ||||||||||
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- Definition
Amount of obligations incurred and payable, pertaining to costs that are statutory in nature, incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include, but not limited to, taxes, interest, rent and utilities. Also includes the aggregate carrying amount of liabilities not separately disclosed. No definition available.
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of capital lease obligation due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For a classified balance sheet, the cumulative difference as of the balance sheet date between the payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, within one year of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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