Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-23-012493-index-headers.html | 2023-05-04 12:48:53 | |
| 0001437749-23-012493-index.html | 2023-05-04 12:48:53 | |
| 0001437749-23-012493.txt | 2023-05-04 12:48:53 | |
 0001437749-23-012493-xbrl.zip | 19161 | 2023-05-04 12:48:53 |
| ex_512857.htm | 87691 | 2023-05-04 12:48:53 |
| ex_512858.htm | 11640 | 2023-05-04 12:48:53 |
| FilingSummary.xml | 1795 | 2023-05-04 12:48:53 |
| Financial_Report.xlsx | 5683 | 2023-05-04 12:48:53 |
| MetaLinks.json | 19419 | 2023-05-04 12:48:53 |
| nrc-20230502.xsd | 3592 | 2023-05-04 12:48:53 |
| nrc-20230502_def.xml | 11528 | 2023-05-04 12:48:53 |
| nrc-20230502_lab.xml | 15413 | 2023-05-04 12:48:53 |
| nrc-20230502_pre.xml | 11684 | 2023-05-04 12:48:53 |
| nrc20230503_8k.htm | 32615 | 2023-05-04 12:48:53 |
| nrc20230503_8k_htm.xml | 2549 | 2023-05-04 12:48:53 |
 picture1.jpg | 6393 | 2023-05-04 12:48:53 |
| R1.htm | 38335 | 2023-05-04 12:48:53 |
| report.css | 2767 | 2023-05-04 12:48:53 |
| Show.js | 1085 | 2023-05-04 12:48:53 |