Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001048268-21-000030-index-headers.html | 2021-02-05 08:04:00 | |
| 0001048268-21-000030-index.html | 2021-02-05 08:04:00 | |
| 0001048268-21-000030.txt | 2021-02-05 08:04:00 | |
 0001048268-21-000030-xbrl.zip | 209931 | 2021-02-05 08:04:00 |
| FilingSummary.xml | 24915 | 2021-02-05 08:04:00 |
| Financial_Report.xlsx | 69423 | 2021-02-05 08:04:00 |
| iesc-20201231.htm | 1324103 | 2021-02-05 08:04:00 |
| iesc-20201231.xsd | 28447 | 2021-02-05 08:04:00 |
| iesc-20201231_cal.xml | 64128 | 2021-02-05 08:04:00 |
| iesc-20201231_def.xml | 117994 | 2021-02-05 08:04:00 |
 iesc-20201231_g1.gif | 8199 | 2021-02-05 08:04:00 |
| iesc-20201231_htm.xml | 1128277 | 2021-02-05 08:04:00 |
| iesc-20201231_lab.xml | 432752 | 2021-02-05 08:04:00 |
| iesc-20201231_pre.xml | 267987 | 2021-02-05 08:04:00 |
| MetaLinks.json | 419482 | 2021-02-05 08:04:00 |
| q12021ex311.htm | 9057 | 2021-02-05 08:04:00 |
| q12021ex312.htm | 9036 | 2021-02-05 08:04:00 |
| q12021ex321.htm | 5875 | 2021-02-05 08:04:00 |
| q12021ex322.htm | 6105 | 2021-02-05 08:04:00 |
| R1.htm | 58323 | 2021-02-05 08:04:00 |
| R10.htm | 6335 | 2021-02-05 08:04:00 |
| R11.htm | 26631 | 2021-02-05 08:04:00 |
| R12.htm | 78066 | 2021-02-05 08:04:00 |
| R13.htm | 13039 | 2021-02-05 08:04:00 |
| R14.htm | 7042 | 2021-02-05 08:04:00 |
| R15.htm | 34130 | 2021-02-05 08:04:00 |
| R16.htm | 13715 | 2021-02-05 08:04:00 |
| R17.htm | 58901 | 2021-02-05 08:04:00 |
| R18.htm | 11035 | 2021-02-05 08:04:00 |
| R19.htm | 39265 | 2021-02-05 08:04:00 |
| R2.htm | 74707 | 2021-02-05 08:04:00 |
| R20.htm | 25017 | 2021-02-05 08:04:00 |
| R21.htm | 55578 | 2021-02-05 08:04:00 |
| R22.htm | 26014 | 2021-02-05 08:04:00 |
| R23.htm | 77298 | 2021-02-05 08:04:00 |
| R24.htm | 33110 | 2021-02-05 08:04:00 |
| R25.htm | 14307 | 2021-02-05 08:04:00 |
| R26.htm | 60142 | 2021-02-05 08:04:00 |
| R27.htm | 40680 | 2021-02-05 08:04:00 |
| R28.htm | 19086 | 2021-02-05 08:04:00 |
| R29.htm | 13687 | 2021-02-05 08:04:00 |
| R3.htm | 19610 | 2021-02-05 08:04:00 |
| R30.htm | 5766 | 2021-02-05 08:04:00 |
| R31.htm | 53341 | 2021-02-05 08:04:00 |
| R32.htm | 14961 | 2021-02-05 08:04:00 |
| R33.htm | 29773 | 2021-02-05 08:04:00 |
| R34.htm | 48545 | 2021-02-05 08:04:00 |
| R35.htm | 53809 | 2021-02-05 08:04:00 |
| R36.htm | 7590 | 2021-02-05 08:04:00 |
| R37.htm | 18645 | 2021-02-05 08:04:00 |
| R38.htm | 12707 | 2021-02-05 08:04:00 |
| R39.htm | 15990 | 2021-02-05 08:04:00 |
| R4.htm | 51196 | 2021-02-05 08:04:00 |
| R40.htm | 32550 | 2021-02-05 08:04:00 |
| R41.htm | 19563 | 2021-02-05 08:04:00 |
| R42.htm | 90518 | 2021-02-05 08:04:00 |
| R43.htm | 42931 | 2021-02-05 08:04:00 |
| R5.htm | 36556 | 2021-02-05 08:04:00 |
| R6.htm | 70101 | 2021-02-05 08:04:00 |
| R7.htm | 23059 | 2021-02-05 08:04:00 |
| R8.htm | 9979 | 2021-02-05 08:04:00 |
| R9.htm | 70297 | 2021-02-05 08:04:00 |
| report.css | 2767 | 2021-02-05 08:04:00 |
| Show.js | 1085 | 2021-02-05 08:04:00 |