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| 0001085869-11-000046-index.html | 2011-11-03 09:12:37 | |
| 0001085869-11-000046.txt | 2011-11-03 09:12:37 | |
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| ceoandcfocert.htm | 10634 | 2011-11-03 09:12:37 |
| ceocert.htm | 14967 | 2011-11-03 09:12:37 |
| cfocert.htm | 15153 | 2011-11-03 09:12:37 |
| FilingSummary.xml | 10208 | 2011-11-03 09:12:37 |
| Financial_Report.xls | 627477 | 2011-11-03 09:12:37 |
| form10q.htm | 895113 | 2011-11-03 09:12:37 |
| prft-20110930.xml | 671562 | 2011-11-03 09:12:37 |
| prft-20110930.xsd | 12267 | 2011-11-03 09:12:37 |
| prft-20110930_cal.xml | 39406 | 2011-11-03 09:12:37 |
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| prft-20110930_lab.xml | 133935 | 2011-11-03 09:12:37 |
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| R1.htm | 18167 | 2011-11-03 09:12:37 |
| R10.htm | 122213 | 2011-11-03 09:12:37 |
| R11.htm | 6363 | 2011-11-03 09:12:37 |
| R12.htm | 24078 | 2011-11-03 09:12:37 |
| R13.htm | 131912 | 2011-11-03 09:12:37 |
| R14.htm | 110798 | 2011-11-03 09:12:37 |
| R15.htm | 103452 | 2011-11-03 09:12:37 |
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| R18.htm | 16310 | 2011-11-03 09:12:37 |
| R2.htm | 95335 | 2011-11-03 09:12:37 |
| R3.htm | 15627 | 2011-11-03 09:12:37 |
| R4.htm | 78354 | 2011-11-03 09:12:37 |
| R5.htm | 67624 | 2011-11-03 09:12:37 |
| R6.htm | 112578 | 2011-11-03 09:12:37 |
| R7.htm | 11743 | 2011-11-03 09:12:37 |
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| R9.htm | 68392 | 2011-11-03 09:12:37 |
| report.css | 2721 | 2011-11-03 09:12:37 |
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