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| 0001437749-24-014358.txt | 2024-05-02 16:05:20 | |
 0001437749-24-014358-xbrl.zip | 150446 | 2024-05-02 16:05:20 |
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| ex_659247.htm | 62086 | 2024-05-02 16:05:20 |
| FilingSummary.xml | 35110 | 2024-05-02 16:05:20 |
| Financial_Report.xlsx | 63821 | 2024-05-02 16:05:20 |
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| nwpx-20240331.xsd | 46827 | 2024-05-02 16:05:20 |
| nwpx-20240331_cal.xml | 37480 | 2024-05-02 16:05:20 |
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| nwpx20240331_10q.htm | 1010507 | 2024-05-02 16:05:20 |
| nwpx20240331_10q_htm.xml | 849755 | 2024-05-02 16:05:20 |
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| report.css | 2767 | 2024-05-02 16:05:20 |
| Show.js | 1085 | 2024-05-02 16:05:20 |