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| 0001085869-12-000039-index.html | 2012-08-02 10:34:31 | |
| 0001085869-12-000039.txt | 2012-08-02 10:34:31 | |
 0001085869-12-000039-xbrl.zip | 159301 | 2012-08-02 10:34:31 |
| ceoandcfocertification.htm | 9589 | 2012-08-02 10:34:31 |
| ceocertification.htm | 14942 | 2012-08-02 10:34:31 |
| cfocertification.htm | 15069 | 2012-08-02 10:34:31 |
| FilingSummary.xml | 22880 | 2012-08-02 10:34:31 |
| Financial_Report.xls | 3444459 | 2012-08-02 10:34:31 |
| form10q.htm | 876579 | 2012-08-02 10:34:31 |
| prft-20120630.xml | 3662336 | 2012-08-02 10:34:31 |
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| R1.htm | 28839 | 2012-08-02 10:34:31 |
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| R9.htm | 53810 | 2012-08-02 10:34:31 |
| report.css | 2721 | 2012-08-02 10:34:31 |
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