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| 0001206774-11-002529-index.html | 2011-11-14 15:56:17 | |
| 0001206774-11-002529.txt | 2011-11-14 15:56:17 | |
 0001206774-11-002529-xbrl.zip | 76284 | 2011-11-14 15:56:17 |
| exhibit31-1.htm | 8907 | 2011-11-14 15:56:17 |
| exhibit31-2.htm | 8000 | 2011-11-14 15:56:17 |
| exhibit32.htm | 4176 | 2011-11-14 15:56:17 |
| FilingSummary.xml | 8798 | 2011-11-14 15:56:17 |
| Financial_Report.xls | 966804 | 2011-11-14 15:56:17 |
| potomac_10q.htm | 1161738 | 2011-11-14 15:56:17 |
| ptbs-20110930.xml | 1159713 | 2011-11-14 15:56:17 |
| ptbs-20110930.xsd | 14171 | 2011-11-14 15:56:17 |
| ptbs-20110930_cal.xml | 45880 | 2011-11-14 15:56:17 |
| ptbs-20110930_def.xml | 82985 | 2011-11-14 15:56:17 |
| ptbs-20110930_lab.xml | 175221 | 2011-11-14 15:56:17 |
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| R10.htm | 70391 | 2011-11-14 15:56:17 |
| R11.htm | 20698 | 2011-11-14 15:56:17 |
| R12.htm | 593657 | 2011-11-14 15:56:17 |
| R13.htm | 43951 | 2011-11-14 15:56:17 |
| R14.htm | 24375 | 2011-11-14 15:56:17 |
| R15.htm | 15375 | 2011-11-14 15:56:17 |
| R16.htm | 140830 | 2011-11-14 15:56:17 |
| R2.htm | 106872 | 2011-11-14 15:56:17 |
| R3.htm | 21935 | 2011-11-14 15:56:17 |
| R4.htm | 111218 | 2011-11-14 15:56:17 |
| R5.htm | 39001 | 2011-11-14 15:56:17 |
| R6.htm | 6244 | 2011-11-14 15:56:17 |
| R7.htm | 119830 | 2011-11-14 15:56:17 |
| R8.htm | 11654 | 2011-11-14 15:56:17 |
| R9.htm | 21705 | 2011-11-14 15:56:17 |
| report.css | 2721 | 2011-11-14 15:56:17 |
| Show.js | 6423 | 2011-11-14 15:56:17 |