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| 0001354488-15-001482-index.html | 2015-03-31 15:26:08 | |
| 0001354488-15-001482.txt | 2015-03-31 15:26:08 | |
 0001354488-15-001482-xbrl.zip | 52089 | 2015-03-31 15:26:08 |
| FilingSummary.xml | 22076 | 2015-03-31 15:26:08 |
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| pgai-20141231.xml | 273904 | 2015-03-31 15:26:08 |
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| pgai-20141231_cal.xml | 37595 | 2015-03-31 15:26:08 |
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