Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001157523-12-002801-index.html | 2012-05-11 08:30:56 | |
| 0001157523-12-002801.txt | 2012-05-11 08:30:56 | |
 0001157523-12-002801-xbrl.zip | 29278 | 2012-05-11 08:30:56 |
| a50266973.htm | 433276 | 2012-05-11 08:30:56 |
| a50266973_ex311.htm | 14753 | 2012-05-11 08:30:56 |
| a50266973_ex321.htm | 6954 | 2012-05-11 08:30:56 |
| FilingSummary.xml | 5702 | 2012-05-11 08:30:56 |
| Financial_Report.xls | 99139 | 2012-05-11 08:30:56 |
 logo.jpg | 1819 | 2012-05-11 08:30:56 |
| opxa-20120331.xml | 101467 | 2012-05-11 08:30:56 |
| opxa-20120331.xsd | 12208 | 2012-05-11 08:30:56 |
| opxa-20120331_cal.xml | 27419 | 2012-05-11 08:30:56 |
| opxa-20120331_def.xml | 65481 | 2012-05-11 08:30:56 |
| opxa-20120331_lab.xml | 95401 | 2012-05-11 08:30:56 |
| opxa-20120331_pre.xml | 76696 | 2012-05-11 08:30:56 |
| R1.htm | 27017 | 2012-05-11 08:30:56 |
| R2.htm | 76523 | 2012-05-11 08:30:56 |
| R3.htm | 32193 | 2012-05-11 08:30:56 |
| R4.htm | 53374 | 2012-05-11 08:30:56 |
| R5.htm | 151524 | 2012-05-11 08:30:56 |
| R6.htm | 10181 | 2012-05-11 08:30:56 |
| R7.htm | 8473 | 2012-05-11 08:30:56 |
| R8.htm | 3820 | 2012-05-11 08:30:56 |
| R9.htm | 62777 | 2012-05-11 08:30:56 |
| report.css | 2721 | 2012-05-11 08:30:56 |
| Show.js | 6423 | 2012-05-11 08:30:56 |