|
Document and Entity Information
|
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Apr. 17, 2015
|
|
| Document And Entity Information [Abstract] | ||
| Document Type | 10-Q | |
| Amendment Flag | false | |
| Document Period End Date | Mar. 31, 2015 | |
| Document Fiscal Year Focus | 2015 | |
| Document Fiscal Period Focus | Q1 | |
| Entity Central Index Key | CEMP | |
| Entity Registrant Name | CEMPRA, INC. | |
| Entity Central Index Key | 0001461993 | |
| Current Fiscal Year End Date | --12-31 | |
| Entity Filer Category | Non-accelerated Filer | |
| Entity Common Stock, Shares Outstanding | 43,588,646 |