Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-24-030445-index-headers.html | 2024-10-02 16:06:31 | |
| 0001437749-24-030445-index.html | 2024-10-02 16:06:31 | |
| 0001437749-24-030445.txt | 2024-10-02 16:06:31 | |
 0001437749-24-030445-xbrl.zip | 11839 | 2024-10-02 16:06:31 |
| ex_728878.htm | 4750 | 2024-10-02 16:06:31 |
| FilingSummary.xml | 1748 | 2024-10-02 16:06:31 |
| Financial_Report.xlsx | 5693 | 2024-10-02 16:06:31 |
| MetaLinks.json | 19294 | 2024-10-02 16:06:31 |
| npk-20240927.xsd | 3401 | 2024-10-02 16:06:31 |
| npk-20240927_def.xml | 11421 | 2024-10-02 16:06:31 |
| npk-20240927_lab.xml | 15310 | 2024-10-02 16:06:31 |
| npk-20240927_pre.xml | 11581 | 2024-10-02 16:06:31 |
| npk20241001_8k.htm | 29118 | 2024-10-02 16:06:31 |
| npk20241001_8k_htm.xml | 2839 | 2024-10-02 16:06:31 |
| R1.htm | 38351 | 2024-10-02 16:06:31 |
| report.css | 2767 | 2024-10-02 16:06:31 |
| Show.js | 1085 | 2024-10-02 16:06:31 |