Document And Entity Information - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Mar. 07, 2017 |
Jun. 30, 2016 |
|
| Document Information [Line Items] | |||
| Entity Registrant Name | KEMPHARM, INC | ||
| Entity Central Index Key | 0001434647 | ||
| Trading Symbol | kmph | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Filer Category | Smaller Reporting Company | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Common Stock, Shares Outstanding (in shares) | 14,646,982 | ||
| Entity Public Float | $ 46,412,563 | ||
| Document Type | 10-K | ||
| Document Period End Date | Dec. 31, 2016 | ||
| Document Fiscal Year Focus | 2016 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | false |