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Document And Entity Information
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12 Months Ended |
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Dec. 31, 2011
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| Document And Entity Information [Abstract] | |
| Document Type | S-1 |
| Amendment Flag | true |
| Document Period End Date | Dec. 31, 2011 |
| Entity Registrant Name | TITAN PHARMACEUTICALS INC |
| Entity Central Index Key | 0000910267 |
| Entity Filer Category | Accelerated Filer |
| Amendment Description | We are filing this post-effective amendment to our Registration Statement on Form S-1 (file no. 333-166351) (the "S-1") that was declared effective on May 11, 2010 in order to update the financial statements and other information contained in the S-1. Pursuant to Rule 429 of the Securities Act of 1933, as amended, we are including in the S-1 the securities covered by our previously filed Registration Statement on Form S-3 (file no. 333-173457). All filing fees payable in connection with the registration of those securities included on the S-1 were previously paid in connection with the filing of the initial registration statements. |