Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-24-017079-index-headers.html | 2024-05-15 16:23:52 | |
| 0001437749-24-017079-index.html | 2024-05-15 16:23:52 | |
| 0001437749-24-017079.txt | 2024-05-15 16:23:52 | |
 0001437749-24-017079-xbrl.zip | 12193 | 2024-05-15 16:23:52 |
| ex_675067.htm | 5986 | 2024-05-15 16:23:52 |
| FilingSummary.xml | 1753 | 2024-05-15 16:23:52 |
| Financial_Report.xlsx | 5693 | 2024-05-15 16:23:52 |
| MetaLinks.json | 19294 | 2024-05-15 16:23:52 |
| npk-20240510.xsd | 3401 | 2024-05-15 16:23:52 |
| npk-20240510_def.xml | 11421 | 2024-05-15 16:23:52 |
| npk-20240510_lab.xml | 15310 | 2024-05-15 16:23:52 |
| npk-20240510_pre.xml | 11581 | 2024-05-15 16:23:52 |
| npk20240515_8k.htm | 25826 | 2024-05-15 16:23:52 |
| npk20240515_8k_htm.xml | 2837 | 2024-05-15 16:23:52 |
| R1.htm | 38355 | 2024-05-15 16:23:52 |
| report.css | 2767 | 2024-05-15 16:23:52 |
| Show.js | 1085 | 2024-05-15 16:23:52 |