Fair Value of Warrants - Assumptions Used in Computing Fair Value of Derivative Warrants (Detail) (USD $)
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3 Months Ended | 12 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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Series B Preferred Stock [Member] | |||
Class of Warrant or Right [Line Items] | |||
Exercise Price |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
Expected life (years) | 7 months 17 days | 1 year 8 months 19 days | 10 months 17 days |
Expected volatility |
49.12%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
46.60%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
49.95%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
Risk-free interest rate |
0.14%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
0.33%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
0.25%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
Expected dividend yield |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |
Debt Guarantee [Member] | |||
Class of Warrant or Right [Line Items] | |||
Exercise Price |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_SecuritiesFinancingTransactionAxis = cgix_DebtRelatedGuaranteesMember |
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Expected life (years) | 7 months 6 days | ||
Expected volatility |
49.01%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_DebtRelatedGuaranteesMember |
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Risk-free interest rate |
0.08%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_DebtRelatedGuaranteesMember |
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Expected dividend yield |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_DebtRelatedGuaranteesMember |
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Consulting [Member] | |||
Class of Warrant or Right [Line Items] | |||
Exercise Price |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
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Expected life (years) | 10 months 24 days | 1 year 1 month 21 days | |
Expected volatility |
46.92%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
49.25%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
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Risk-free interest rate |
0.26%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
0.25%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
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Expected dividend yield |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_ConsultantWarrantsMember |
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Financing [Member] | |||
Class of Warrant or Right [Line Items] | |||
Exercise Price |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
$ 10.00cgix_FairValueAssumptionExercisePrice / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
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Expected life (years) | 11 months 23 days | 1 year 2 months 23 days | |
Expected volatility |
46.69%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
50.23%us-gaap_FairValueAssumptionsExpectedVolatilityRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
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Risk-free interest rate |
0.26%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
0.25%us-gaap_FairValueAssumptionsRiskFreeInterestRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
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Expected dividend yield |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
0.00%us-gaap_FairValueAssumptionsExpectedDividendRate / us-gaap_SecuritiesFinancingTransactionAxis = cgix_FinancialMember |
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Fair Value Assumption Exercise Price No definition available.
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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Risk-free interest rate assumption used in valuing an instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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