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| 0001437749-26-014185-index.html | 2026-04-30 16:03:43 | |
| 0001437749-26-014185.txt | 2026-04-30 16:03:43 | |
 0001437749-26-014185-xbrl.zip | 136509 | 2026-04-30 16:03:43 |
| ex_935308.htm | 13761 | 2026-04-30 16:03:43 |
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| nwpx-20260331.xsd | 45751 | 2026-04-30 16:03:43 |
| nwpx-20260331_cal.xml | 50054 | 2026-04-30 16:03:43 |
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| nwpx20260331_10q_htm.xml | 681722 | 2026-04-30 16:03:43 |
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| report.css | 2767 | 2026-04-30 16:03:43 |
| Show.js | 1085 | 2026-04-30 16:03:43 |