Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-22-025091-index-headers.html | 2022-10-28 16:37:02 | |
| 0001437749-22-025091-index.html | 2022-10-28 16:37:02 | |
| 0001437749-22-025091.txt | 2022-10-28 16:37:02 | |
 0001437749-22-025091-xbrl.zip | 12745 | 2022-10-28 16:37:02 |
| ex_439080.htm | 20714 | 2022-10-28 16:37:02 |
| FilingSummary.xml | 1766 | 2022-10-28 16:37:02 |
| Financial_Report.xlsx | 5695 | 2022-10-28 16:37:02 |
| MetaLinks.json | 18885 | 2022-10-28 16:37:02 |
| npk-20221028.xsd | 3594 | 2022-10-28 16:37:02 |
| npk-20221028_def.xml | 11530 | 2022-10-28 16:37:02 |
| npk-20221028_lab.xml | 15415 | 2022-10-28 16:37:02 |
| npk-20221028_pre.xml | 11686 | 2022-10-28 16:37:02 |
| npk20221028_8k.htm | 25150 | 2022-10-28 16:37:02 |
| npk20221028_8k_htm.xml | 2565 | 2022-10-28 16:37:02 |
| R1.htm | 38354 | 2022-10-28 16:37:02 |
| report.css | 2767 | 2022-10-28 16:37:02 |
| Show.js | 1085 | 2022-10-28 16:37:02 |