Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-25-006475-index-headers.html | 2025-03-06 16:59:13 | |
| 0001437749-25-006475-index.html | 2025-03-06 16:59:13 | |
| 0001437749-25-006475.txt | 2025-03-06 16:59:13 | |
 0001437749-25-006475-xbrl.zip | 10631 | 2025-03-06 16:59:13 |
| FilingSummary.xml | 2351 | 2025-03-06 16:59:13 |
| Financial_Report.xlsx | 6954 | 2025-03-06 16:59:13 |
| MetaLinks.json | 26607 | 2025-03-06 16:59:13 |
| npk-20250301.xsd | 3570 | 2025-03-06 16:59:13 |
| npk-20250301_def.xml | 11420 | 2025-03-06 16:59:13 |
| npk-20250301_lab.xml | 15309 | 2025-03-06 16:59:13 |
| npk-20250301_pre.xml | 11580 | 2025-03-06 16:59:13 |
| npk20250306_8k.htm | 34291 | 2025-03-06 16:59:13 |
| npk20250306_8k_htm.xml | 4655 | 2025-03-06 16:59:13 |
| R1.htm | 38354 | 2025-03-06 16:59:13 |
| R2.htm | 10674 | 2025-03-06 16:59:13 |
| report.css | 2767 | 2025-03-06 16:59:13 |
| Show.js | 1085 | 2025-03-06 16:59:13 |