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| 0001721868-20-000426-index.html | 2020-09-28 14:15:05 | |
| 0001721868-20-000426.txt | 2020-09-28 14:15:05 | |
 0001721868-20-000426-xbrl.zip | 105263 | 2020-09-28 14:15:05 |
| f2sgrst10q092120.htm | 793193 | 2020-09-28 14:15:05 |
| f2sgrst10q092120ex31_1.htm | 12939 | 2020-09-28 14:15:05 |
| f2sgrst10q092120ex32_1.htm | 4726 | 2020-09-28 14:15:05 |
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| grst-20200331.xsd | 45479 | 2020-09-28 14:15:05 |
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| report.css | 2766 | 2020-09-28 14:15:05 |
| Show.js | 1085 | 2020-09-28 14:15:05 |