Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements Fair Value Measurements - Additional Information (Details)

v2.4.1.9
Fair Value Measurements Fair Value Measurements - Additional Information (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Change in fair value of acquisition note payable $ (89,914)us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1 $ 0us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
Gentris [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Change in fair value of acquisition note payable 162,000us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
/ us-gaap_BusinessAcquisitionAxis
= cgix_GentrisCorporationMember 		0us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
/ us-gaap_BusinessAcquisitionAxis
= cgix_GentrisCorporationMember
BioServe [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Change in fair value of acquisition note payable (89,914)us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
/ us-gaap_BusinessAcquisitionAxis
= cgix_BioServeBiotechnologiesIndiaPrivateLimitedMember 		0us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
/ us-gaap_BusinessAcquisitionAxis
= cgix_BioServeBiotechnologiesIndiaPrivateLimitedMember
VenturEast [Member] | BioServe [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Change in fair value of acquisition note payable $ (90,000)us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1
/ us-gaap_BusinessAcquisitionAxis
= cgix_BioServeBiotechnologiesIndiaPrivateLimitedMember
/ us-gaap_CounterpartyNameAxis
= cgix_VentureastTrusteeCompanyPvtLtdMember 		 
Number of shares associated with notes payable 84,278cgix_BusinessCombinationConsiderationTransferredNotesPayableinShares
/ us-gaap_BusinessAcquisitionAxis
= cgix_BioServeBiotechnologiesIndiaPrivateLimitedMember
/ us-gaap_CounterpartyNameAxis
= cgix_VentureastTrusteeCompanyPvtLtdMember