|
Statements of Convertible Preferred Stock and Stockholders' (Deficit) Equity (USD $)
In Thousands, except Share data |
Total
|
Convertible Preferred Stock [Member]
|
Common Stock [Member]
|
Additional Paid-In Capital [Member]
|
Accumulated Deficit [Member]
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|---|---|---|---|---|---|
| Beginning Balance at Dec. 31, 2011 | $ (142,223)us-gaap_StockholdersEquity | $ 119,837us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
$ 1us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
$ 9,331us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
$ (151,555)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
| Beginning Balance, Shares at Dec. 31, 2011 | 4,447,657us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
1,007,575us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Issuance of Series G convertible preferred stock in April 2012 for cash, net of issuance costs | 2,941cdna_StockIssuedDuringPeriodValueConversionOfPreferredStockToCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
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| Issuance of Series G convertible preferred stock in April 2012 for cash, net of issuance costs, Shares | 137,722cdna_StockIssuedDuringPeriodSharesConversionOfPreferredStockToCommonStock / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
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| Conversion of notes payable and interest in April 2012 to Series G convertible preferred stock, net of issuance costs | 12,424us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecuritiesNetOfAdjustments / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
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| Conversion of notes payable and interest in April 2012 to Series G convertible preferred stock, net of issuance costs, Shares | 570,294us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
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| Issuance of common stock for cash upon exercise of stock options | 10us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised | 10us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Issuance of common stock for cash upon exercise of stock options, Shares | 2,924us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised | 2,924us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Employee and non-employee share-based compensation expense | 69us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 69us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Net income (loss) | (5,059)us-gaap_NetIncomeLoss | (5,059)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
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| Ending Balance at Dec. 31, 2012 | (147,203)us-gaap_StockholdersEquity | 135,202us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
1us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
9,410us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
(156,614)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
| Ending Balance, Shares at Dec. 31, 2012 | 5,155,673us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
1,010,499us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Issuance of common stock for cash upon exercise of stock options, Shares | 212us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised | 212us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Employee and non-employee share-based compensation expense | 72us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 72us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Net income (loss) | (3,542)us-gaap_NetIncomeLoss | (3,542)us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
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| Ending Balance at Dec. 31, 2013 | (150,673)us-gaap_StockholdersEquity | 135,202us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
1us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
9,482us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
(160,156)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
| Ending Balance, Shares at Dec. 31, 2013 | 5,155,673us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
1,010,711us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Convertible preferred stock Series G issued for the acquisition of ImmuMetrix, Inc. | 14,242us-gaap_StockIssuedDuringPeriodValueAcquisitions / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
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| Convertible preferred stock Series G issued for the acquisition of ImmuMetrix, Inc., Shares | 888,135us-gaap_StockIssuedDuringPeriodSharesAcquisitions / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
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| Conversion of convertible preferred stock to common stock upon initial public offering | 149,444us-gaap_StockIssuedDuringPeriodValueConversionOfUnits | (149,444)us-gaap_StockIssuedDuringPeriodValueConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
6us-gaap_StockIssuedDuringPeriodValueConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
149,438us-gaap_StockIssuedDuringPeriodValueConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
|
| Conversion of convertible preferred stock to common stock upon initial public offering, Shares | (6,043,808)us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
6,048,220us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Conversion of subordinated convertible note to common stock upon initial public offering | 5,108us-gaap_StockIssuedDuringPeriodValueNewIssues | 1us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
5,107us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Conversion of subordinated convertible note to common stock upon initial public offering, Shares | 510,777us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Conversion of convertible preferred stock warrants to common stock warrants upon initial public offering | 539us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock | 539us-gaap_AdjustmentsToAdditionalPaidInCapitalIncreaseInCarryingAmountOfRedeemablePreferredStock / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Issuance of common stock upon initial public offering, net of offering costs | 35,511cdna_IssuanceOfCommonStockInitialPublicOffering | 4cdna_IssuanceOfCommonStockInitialPublicOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
35,507cdna_IssuanceOfCommonStockInitialPublicOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Issuance of common stock upon initial public offering, net of offering costs, Shares | 4,220,000cdna_IssuanceOfCommonStockInInitialPublicOfferingShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Issuance of common stock for services | 34us-gaap_StockIssuedDuringPeriodValueIssuedForServices | 34us-gaap_StockIssuedDuringPeriodValueIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Issuance of common stock for services, Shares | 4,899us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Issuance of common stock for cash upon exercise of stock options | 19us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised | 19us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Issuance of common stock for cash upon exercise of stock options, Shares | 9,363us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised | 9,363us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Employee and non-employee share-based compensation expense | 535us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue | 535us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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| Net income (loss) | 781us-gaap_NetIncomeLoss | 781us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
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| Ending Balance at Dec. 31, 2014 | $ 41,298us-gaap_StockholdersEquity | $ 0us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_ConvertiblePreferredStockMember |
$ 12us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
$ 200,661us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
$ (159,375)us-gaap_StockholdersEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
| Ending Balance, Shares at Dec. 31, 2014 | 11,803,970us-gaap_SharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
| X | ||||||||||
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- Definition
Issuance Of Common Stock In Initial Public Offering Shares No definition available.
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| X | ||||||||||
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- Definition
Issuance Of Common Stock Initial Public Offering No definition available.
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| X | ||||||||||
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- Definition
Stock Issued During Period Shares Conversion Of Preferred Stock To Common Stock No definition available.
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| X | ||||||||||
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- Definition
Stock Issued During Period Value Conversion Of Preferred Stock To Common Stock No definition available.
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| X | ||||||||||
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- Definition
Amount of decrease (increase) in additional paid in capital (APIC) for the increase in carrying amount of redeemable preferred stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued which are neither cancelled nor held in the treasury. No definition available.
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| X | ||||||||||
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares of stock issued during the period pursuant to acquisitions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. No definition available.
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| X | ||||||||||
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- Definition
Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Value of stock issued pursuant to acquisitions during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net amount of stock issued during the period upon the conversion of convertible securities, net of adjustments (for example, to additional paid in capital) including the write-off of an equity component recognized to record the convertible debt instrument as two separate components - a debt component and an equity component. This item is meant to disclose the value of shares issued on conversion of convertible securities that were recorded as two separate (debt and equity) components. No definition available.
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| X | ||||||||||
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- Definition
Value of stock issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders. No definition available.
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| X | ||||||||||
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- Definition
Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Value of stock issued as a result of the exercise of stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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