Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-22-013292-index-headers.html | 2022-05-23 12:28:54 | |
| 0001437749-22-013292-index.html | 2022-05-23 12:28:54 | |
| 0001437749-22-013292.txt | 2022-05-23 12:28:54 | |
 0001437749-22-013292-xbrl.zip | 13245 | 2022-05-23 12:28:54 |
| ex_378945.htm | 6467 | 2022-05-23 12:28:54 |
| FilingSummary.xml | 1764 | 2022-05-23 12:28:54 |
| Financial_Report.xlsx | 5658 | 2022-05-23 12:28:54 |
 image01.jpg | 6336 | 2022-05-23 12:28:54 |
| MetaLinks.json | 18885 | 2022-05-23 12:28:54 |
| nrc-20220518.xsd | 3594 | 2022-05-23 12:28:54 |
| nrc-20220518_def.xml | 11530 | 2022-05-23 12:28:54 |
| nrc-20220518_lab.xml | 15415 | 2022-05-23 12:28:54 |
| nrc-20220518_pre.xml | 11686 | 2022-05-23 12:28:54 |
| nrc20220520_8k.htm | 55252 | 2022-05-23 12:28:54 |
| nrc20220520_8k_htm.xml | 2549 | 2022-05-23 12:28:54 |
| R1.htm | 38941 | 2022-05-23 12:28:54 |
| report.css | 2767 | 2022-05-23 12:28:54 |
| Show.js | 1085 | 2022-05-23 12:28:54 |