Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001618563-20-000057-index-headers.html | 2020-04-06 16:11:37 | |
| 0001618563-20-000057-index.html | 2020-04-06 16:11:37 | |
| 0001618563-20-000057.txt | 2020-04-06 16:11:37 | |
 0001618563-20-000057-xbrl.zip | 116175 | 2020-04-06 16:11:37 |
| ex101-crameremployment.htm | 123087 | 2020-04-06 16:11:37 |
| ex102-treadwellseparat.htm | 58170 | 2020-04-06 16:11:37 |
| ex103-nordhagenemploym.htm | 128597 | 2020-04-06 16:11:37 |
| ex104-fischeremploymen.htm | 128434 | 2020-04-06 16:11:37 |
| ex105-togashiemploymen.htm | 125686 | 2020-04-06 16:11:37 |
| ex106-nordhagenlettera.htm | 31160 | 2020-04-06 16:11:37 |
| ex107-cramerletteragre.htm | 30052 | 2020-04-06 16:11:37 |
| FilingSummary.xml | 2232 | 2020-04-06 16:11:37 |
| Financial_Report.xlsx | 5978 | 2020-04-06 16:11:37 |
| MetaLinks.json | 24256 | 2020-04-06 16:11:37 |
| nsa-20200331.htm | 90972 | 2020-04-06 16:11:37 |
| nsa-20200331.xsd | 2838 | 2020-04-06 16:11:37 |
| nsa-20200331_cal.xml | 836 | 2020-04-06 16:11:37 |
| nsa-20200331_def.xml | 17656 | 2020-04-06 16:11:37 |
| nsa-20200331_htm.xml | 13976 | 2020-04-06 16:11:37 |
| nsa-20200331_lab.xml | 33243 | 2020-04-06 16:11:37 |
| nsa-20200331_pre.xml | 17936 | 2020-04-06 16:11:37 |
| R1.htm | 44432 | 2020-04-06 16:11:37 |
| report.css | 2767 | 2020-04-06 16:11:37 |
| Show.js | 1085 | 2020-04-06 16:11:37 |