Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-25-030187-index-headers.html | 2025-10-01 16:32:27 | |
| 0001437749-25-030187-index.html | 2025-10-01 16:32:27 | |
| 0001437749-25-030187.txt | 2025-10-01 16:32:27 | |
 0001437749-25-030187-xbrl.zip | 11774 | 2025-10-01 16:32:27 |
| ex_865591.htm | 4781 | 2025-10-01 16:32:27 |
| FilingSummary.xml | 1748 | 2025-10-01 16:32:27 |
| MetaLinks.json | 25294 | 2025-10-01 16:32:27 |
| npk-20250929.xsd | 3571 | 2025-10-01 16:32:27 |
| npk-20250929_def.xml | 11421 | 2025-10-01 16:32:27 |
| npk-20250929_lab.xml | 15310 | 2025-10-01 16:32:27 |
| npk-20250929_pre.xml | 11581 | 2025-10-01 16:32:27 |
| npk20251001_8k.htm | 27265 | 2025-10-01 16:32:27 |
| npk20251001_8k_htm.xml | 2849 | 2025-10-01 16:32:27 |
| R1.htm | 38336 | 2025-10-01 16:32:27 |
| report.css | 2767 | 2025-10-01 16:32:27 |
| Show.js | 1084 | 2025-10-01 16:32:27 |