Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001213900-21-020008-index-headers.html | 2021-04-05 06:34:02 | |
| 0001213900-21-020008-index.html | 2021-04-05 06:34:02 | |
| 0001213900-21-020008.txt | 2021-04-05 06:34:02 | |
 0001213900-21-020008-xbrl.zip | 39961 | 2021-04-05 06:34:02 |
| cik0001672885-20201231.xml | 96922 | 2021-04-05 06:34:02 |
| cik0001672885-20201231.xsd | 17841 | 2021-04-05 06:34:02 |
| cik0001672885-20201231_cal.xml | 11900 | 2021-04-05 06:34:02 |
| cik0001672885-20201231_def.xml | 75266 | 2021-04-05 06:34:02 |
| cik0001672885-20201231_lab.xml | 147412 | 2021-04-05 06:34:02 |
| cik0001672885-20201231_pre.xml | 80976 | 2021-04-05 06:34:02 |
| f10k2020ex31_doersedu.htm | 9544 | 2021-04-05 06:34:02 |
| f10k2020ex32_doersedu.htm | 3798 | 2021-04-05 06:34:02 |
| f10k2020_doerseducation.htm | 267937 | 2021-04-05 06:34:02 |
| FilingSummary.xml | 15269 | 2021-04-05 06:34:02 |
| Financial_Report.xlsx | 32460 | 2021-04-05 06:34:02 |
| R1.htm | 40972 | 2021-04-05 06:34:02 |
| R10.htm | 5959 | 2021-04-05 06:34:02 |
| R11.htm | 5981 | 2021-04-05 06:34:02 |
| R12.htm | 20519 | 2021-04-05 06:34:02 |
| R13.htm | 5280 | 2021-04-05 06:34:02 |
| R14.htm | 33970 | 2021-04-05 06:34:02 |
| R15.htm | 19825 | 2021-04-05 06:34:02 |
| R16.htm | 7821 | 2021-04-05 06:34:02 |
| R17.htm | 15973 | 2021-04-05 06:34:02 |
| R18.htm | 5075 | 2021-04-05 06:34:02 |
| R19.htm | 5089 | 2021-04-05 06:34:02 |
| R2.htm | 45661 | 2021-04-05 06:34:02 |
| R20.htm | 23597 | 2021-04-05 06:34:02 |
| R21.htm | 6707 | 2021-04-05 06:34:02 |
| R22.htm | 11304 | 2021-04-05 06:34:02 |
| R23.htm | 14651 | 2021-04-05 06:34:02 |
| R24.htm | 10711 | 2021-04-05 06:34:02 |
| R3.htm | 18992 | 2021-04-05 06:34:02 |
| R4.htm | 38986 | 2021-04-05 06:34:02 |
| R5.htm | 22250 | 2021-04-05 06:34:02 |
| R6.htm | 34252 | 2021-04-05 06:34:02 |
| R7.htm | 13643 | 2021-04-05 06:34:02 |
| R8.htm | 6725 | 2021-04-05 06:34:02 |
| R9.htm | 4618 | 2021-04-05 06:34:02 |
| report.css | 2767 | 2021-04-05 06:34:02 |
| Show.js | 1085 | 2021-04-05 06:34:02 |