Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information
6 Months Ended
Jun. 30, 2014
Aug. 01, 2014
Document And Entity Information [Abstract]    
Document Type 10-Q/A  
Amendment Flag true  
Amendment Description Cancer Genetics, Inc. (the “Company”) is filing this Amendment No. 1 to Form 10-Q solely to correct certain typographical errors related to the dates contained in Exhibits 31.1, 31.2, 32.1 and 32.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2014 filed with the Securities and Exchange Commission on August 14, 2014 (the “Original Filing”).  
Document Period End Date Jun. 30, 2014  
Document Fiscal Year Focus 2014  
Document Fiscal Period Focus Q2  
Trading Symbol CGIX  
Entity Registrant Name CANCER GENETICS, INC  
Entity Central Index Key 0001349929  
Current Fiscal Year End Date --12-31  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   9,696,658