Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-24-004826-index-headers.html | 2024-02-20 16:07:43 | |
| 0001437749-24-004826-index.html | 2024-02-20 16:07:43 | |
| 0001437749-24-004826.txt | 2024-02-20 16:07:43 | |
 0001437749-24-004826-xbrl.zip | 14024 | 2024-02-20 16:07:43 |
| ex_628176.htm | 18448 | 2024-02-20 16:07:43 |
| FilingSummary.xml | 1750 | 2024-02-20 16:07:43 |
| Financial_Report.xlsx | 5694 | 2024-02-20 16:07:43 |
| MetaLinks.json | 19294 | 2024-02-20 16:07:43 |
| npk-20240216.xsd | 3401 | 2024-02-20 16:07:43 |
| npk-20240216_def.xml | 11421 | 2024-02-20 16:07:43 |
| npk-20240216_lab.xml | 15310 | 2024-02-20 16:07:43 |
| npk-20240216_pre.xml | 11581 | 2024-02-20 16:07:43 |
| npk20240219_8k.htm | 29712 | 2024-02-20 16:07:43 |
| npk20240219_8k_htm.xml | 2839 | 2024-02-20 16:07:43 |
| R1.htm | 38354 | 2024-02-20 16:07:43 |
| report.css | 2767 | 2024-02-20 16:07:43 |
| Show.js | 1085 | 2024-02-20 16:07:43 |