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|---|---|---|
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| 0000830656-12-000056-index.html | 2012-05-25 13:50:13 | |
| 0000830656-12-000056.txt | 2012-05-25 13:50:13 | |
 0000830656-12-000056-xbrl.zip | 107517 | 2012-05-25 13:50:13 |
| ex23_1.htm | 3064 | 2012-05-25 13:50:13 |
| FilingSummary.xml | 8600 | 2012-05-25 13:50:13 |
| Financial_Report.xls | 1018222 | 2012-05-25 13:50:13 |
 pbilogo.jpg | 13446 | 2012-05-25 13:50:13 |
| pbio-20120331.xml | 1221155 | 2012-05-25 13:50:13 |
| pbio-20120331.xsd | 19356 | 2012-05-25 13:50:13 |
| pbio-20120331_cal.xml | 29934 | 2012-05-25 13:50:13 |
| pbio-20120331_def.xml | 83835 | 2012-05-25 13:50:13 |
| pbio-20120331_lab.xml | 174230 | 2012-05-25 13:50:13 |
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| R1.htm | 17248 | 2012-05-25 13:50:13 |
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| R11.htm | 512619 | 2012-05-25 13:50:13 |
| R12.htm | 17183 | 2012-05-25 13:50:13 |
| R13.htm | 22346 | 2012-05-25 13:50:13 |
| R14.htm | 15474 | 2012-05-25 13:50:13 |
| R15.htm | 5717 | 2012-05-25 13:50:13 |
| R16.htm | 61656 | 2012-05-25 13:50:13 |
| R2.htm | 131872 | 2012-05-25 13:50:13 |
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| R6.htm | 150224 | 2012-05-25 13:50:13 |
| R7.htm | 24097 | 2012-05-25 13:50:13 |
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| R9.htm | 273271 | 2012-05-25 13:50:13 |
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| s1a.htm | 2867932 | 2012-05-25 13:50:13 |
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