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| 0001296435-22-000040-index.html | 2022-05-04 16:16:57 | |
| 0001296435-22-000040.txt | 2022-05-04 16:16:57 | |
 0001296435-22-000040-xbrl.zip | 224860 | 2022-05-04 16:16:57 |
| FilingSummary.xml | 28858 | 2022-05-04 16:16:57 |
| Financial_Report.xlsx | 68611 | 2022-05-04 16:16:57 |
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| np-20220331.htm | 1152227 | 2022-05-04 16:16:57 |
| np-20220331.xsd | 42202 | 2022-05-04 16:16:57 |
| np-20220331_cal.xml | 80314 | 2022-05-04 16:16:57 |
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| np-20220331_lab.xml | 558949 | 2022-05-04 16:16:57 |
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| np20220331ex311.htm | 15126 | 2022-05-04 16:16:57 |
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| np20220331ex321.htm | 6495 | 2022-05-04 16:16:57 |
| np20220331ex322.htm | 6431 | 2022-05-04 16:16:57 |
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| report.css | 2767 | 2022-05-04 16:16:57 |
| Show.js | 1085 | 2022-05-04 16:16:57 |