Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000894245-20-000011-index-headers.html | 2020-05-15 12:28:01 | |
| 0000894245-20-000011-index.html | 2020-05-15 12:28:01 | |
| 0000894245-20-000011.txt | 2020-05-15 12:28:01 | |
 0000894245-20-000011-xbrl.zip | 32757 | 2020-05-15 12:28:01 |
| 21-YR20Q1.htm | 187656 | 2020-05-15 12:28:01 |
| aei21-20200331.xml | 55773 | 2020-05-15 12:28:01 |
| aei21-20200331.xsd | 15368 | 2020-05-15 12:28:01 |
| aei21-20200331_cal.xml | 14843 | 2020-05-15 12:28:01 |
| aei21-20200331_def.xml | 72138 | 2020-05-15 12:28:01 |
| aei21-20200331_lab.xml | 110942 | 2020-05-15 12:28:01 |
| aei21-20200331_pre.xml | 75331 | 2020-05-15 12:28:01 |
| ex31-121.htm | 8126 | 2020-05-15 12:28:01 |
| ex31-221.htm | 8529 | 2020-05-15 12:28:01 |
| ex32-21.htm | 8816 | 2020-05-15 12:28:01 |
| FilingSummary.xml | 10537 | 2020-05-15 12:28:01 |
| Financial_Report.xlsx | 23119 | 2020-05-15 12:28:01 |
| R1.htm | 51128 | 2020-05-15 12:28:01 |
| R10.htm | 6477 | 2020-05-15 12:28:01 |
| R11.htm | 4934 | 2020-05-15 12:28:01 |
| R12.htm | 5784 | 2020-05-15 12:28:01 |
| R13.htm | 6489 | 2020-05-15 12:28:01 |
| R14.htm | 5934 | 2020-05-15 12:28:01 |
| R15.htm | 15115 | 2020-05-15 12:28:01 |
| R16.htm | 14760 | 2020-05-15 12:28:01 |
| R17.htm | 10724 | 2020-05-15 12:28:01 |
| R18.htm | 15888 | 2020-05-15 12:28:01 |
| R2.htm | 49052 | 2020-05-15 12:28:01 |
| R3.htm | 7755 | 2020-05-15 12:28:01 |
| R4.htm | 36329 | 2020-05-15 12:28:01 |
| R5.htm | 31231 | 2020-05-15 12:28:01 |
| R6.htm | 17731 | 2020-05-15 12:28:01 |
| R7.htm | 5508 | 2020-05-15 12:28:01 |
| R8.htm | 11129 | 2020-05-15 12:28:01 |
| R9.htm | 4675 | 2020-05-15 12:28:01 |
| report.css | 2767 | 2020-05-15 12:28:01 |
| Show.js | 1085 | 2020-05-15 12:28:01 |