Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001062993-21-003803-index-headers.html | 2021-04-23 18:35:14 | |
| 0001062993-21-003803-index.html | 2021-04-23 18:35:14 | |
| 0001062993-21-003803.txt | 2021-04-23 18:35:14 | |
 0001062993-21-003803-xbrl.zip | 128326 | 2021-04-23 18:35:14 |
| enrt-20210228.xml | 862177 | 2021-04-23 18:35:14 |
| enrt-20210228.xsd | 75495 | 2021-04-23 18:35:14 |
| enrt-20210228_cal.xml | 26628 | 2021-04-23 18:35:14 |
| enrt-20210228_def.xml | 102048 | 2021-04-23 18:35:14 |
| enrt-20210228_lab.xml | 691847 | 2021-04-23 18:35:14 |
| enrt-20210228_pre.xml | 230748 | 2021-04-23 18:35:14 |
| exhibit10-1.htm | 11693 | 2021-04-23 18:35:14 |
 exhibit10-1x001.jpg | 525655 | 2021-04-23 18:35:14 |
 exhibit10-1x002.jpg | 533204 | 2021-04-23 18:35:14 |
 exhibit10-1x003.jpg | 451842 | 2021-04-23 18:35:14 |
 exhibit10-1x004.jpg | 423868 | 2021-04-23 18:35:14 |
 exhibit10-1x005.jpg | 395836 | 2021-04-23 18:35:14 |
 exhibit10-1x006.jpg | 473688 | 2021-04-23 18:35:14 |
 exhibit10-1x007.jpg | 468454 | 2021-04-23 18:35:14 |
 exhibit10-1x008.jpg | 519537 | 2021-04-23 18:35:14 |
 exhibit10-1x009.jpg | 293836 | 2021-04-23 18:35:14 |
 exhibit10-1x010.jpg | 338122 | 2021-04-23 18:35:14 |
 exhibit10-1x011.jpg | 301650 | 2021-04-23 18:35:14 |
 exhibit10-1x012.jpg | 212985 | 2021-04-23 18:35:14 |
 exhibit10-1x013.jpg | 350316 | 2021-04-23 18:35:14 |
 exhibit10-1x014.jpg | 384995 | 2021-04-23 18:35:14 |
 exhibit10-1x015.jpg | 395398 | 2021-04-23 18:35:14 |
 exhibit10-1x016.jpg | 391864 | 2021-04-23 18:35:14 |
 exhibit10-1x017.jpg | 418060 | 2021-04-23 18:35:14 |
 exhibit10-1x018.jpg | 388516 | 2021-04-23 18:35:14 |
 exhibit10-1x019.jpg | 496161 | 2021-04-23 18:35:14 |
 exhibit10-1x020.jpg | 413694 | 2021-04-23 18:35:14 |
 exhibit10-1x021.jpg | 409433 | 2021-04-23 18:35:14 |
| exhibit10-2.htm | 5501 | 2021-04-23 18:35:14 |
 exhibit10-2x001.jpg | 611485 | 2021-04-23 18:35:14 |
 exhibit10-2x002.jpg | 490572 | 2021-04-23 18:35:14 |
 exhibit10-2x003.jpg | 488435 | 2021-04-23 18:35:14 |
 exhibit10-2x004.jpg | 433591 | 2021-04-23 18:35:14 |
 exhibit10-2x005.jpg | 468811 | 2021-04-23 18:35:14 |
 exhibit10-2x006.jpg | 564361 | 2021-04-23 18:35:14 |
 exhibit10-2x007.jpg | 460792 | 2021-04-23 18:35:14 |
 exhibit10-2x008.jpg | 517826 | 2021-04-23 18:35:14 |
 exhibit10-2x009.jpg | 403028 | 2021-04-23 18:35:14 |
 exhibit10-2x010.jpg | 258957 | 2021-04-23 18:35:14 |
 exhibit10-2x011.jpg | 370018 | 2021-04-23 18:35:14 |
 exhibit10-2x012.jpg | 328074 | 2021-04-23 18:35:14 |
 exhibit10-2x013.jpg | 256434 | 2021-04-23 18:35:14 |
 exhibit10-2x014.jpg | 404487 | 2021-04-23 18:35:14 |
 exhibit10-2x015.jpg | 419456 | 2021-04-23 18:35:14 |
 exhibit10-2x016.jpg | 425391 | 2021-04-23 18:35:14 |
 exhibit10-2x017.jpg | 407957 | 2021-04-23 18:35:14 |
 exhibit10-2x018.jpg | 447100 | 2021-04-23 18:35:14 |
 exhibit10-2x019.jpg | 405733 | 2021-04-23 18:35:14 |
 exhibit10-2x020.jpg | 508453 | 2021-04-23 18:35:14 |
 exhibit10-2x021.jpg | 386259 | 2021-04-23 18:35:14 |
 exhibit10-2x022.jpg | 494377 | 2021-04-23 18:35:14 |
| exhibit10-3.htm | 6715 | 2021-04-23 18:35:14 |
 exhibit10-3x10x1.jpg | 558705 | 2021-04-23 18:35:14 |
 exhibit10-3x11x1.jpg | 553902 | 2021-04-23 18:35:14 |
 exhibit10-3x12x1.jpg | 542549 | 2021-04-23 18:35:14 |
 exhibit10-3x13x1.jpg | 486987 | 2021-04-23 18:35:14 |
 exhibit10-3x14x1.jpg | 375944 | 2021-04-23 18:35:14 |
 exhibit10-3x15x1.jpg | 526858 | 2021-04-23 18:35:14 |
 exhibit10-3x16x1.jpg | 455582 | 2021-04-23 18:35:14 |
 exhibit10-3x17x1.jpg | 483546 | 2021-04-23 18:35:14 |
 exhibit10-3x18x1.jpg | 495974 | 2021-04-23 18:35:14 |
 exhibit10-3x19x1.jpg | 143444 | 2021-04-23 18:35:14 |
 exhibit10-3x1x1.jpg | 384115 | 2021-04-23 18:35:14 |
 exhibit10-3x20x1.jpg | 111701 | 2021-04-23 18:35:14 |
 exhibit10-3x21x1.jpg | 175506 | 2021-04-23 18:35:14 |
 exhibit10-3x22x1.jpg | 403283 | 2021-04-23 18:35:14 |
 exhibit10-3x2x1.jpg | 478262 | 2021-04-23 18:35:14 |
 exhibit10-3x3x1.jpg | 432952 | 2021-04-23 18:35:14 |
 exhibit10-3x4x1.jpg | 381628 | 2021-04-23 18:35:14 |
 exhibit10-3x5x1.jpg | 506100 | 2021-04-23 18:35:14 |
 exhibit10-3x6x1.jpg | 606024 | 2021-04-23 18:35:14 |
 exhibit10-3x7x1.jpg | 441887 | 2021-04-23 18:35:14 |
 exhibit10-3x8x1.jpg | 549936 | 2021-04-23 18:35:14 |
 exhibit10-3x9x1.jpg | 466464 | 2021-04-23 18:35:14 |
| exhibit23-1.htm | 2264 | 2021-04-23 18:35:14 |
 exhibit23-1xu001.jpg | 5501 | 2021-04-23 18:35:14 |
 exhibit23-1xu004.jpg | 8807 | 2021-04-23 18:35:14 |
| exhibit5-1.htm | 903 | 2021-04-23 18:35:14 |
 exhibit5-1x1x1.jpg | 514559 | 2021-04-23 18:35:14 |
 exhibit5-1x2x1.jpg | 160355 | 2021-04-23 18:35:14 |
| FilingSummary.xml | 26340 | 2021-04-23 18:35:14 |
| Financial_Report.xlsx | 68571 | 2021-04-23 18:35:14 |
| forms1.htm | 1117738 | 2021-04-23 18:35:14 |
 forms1x001.jpg | 73253 | 2021-04-23 18:35:14 |
 forms1x002.jpg | 74816 | 2021-04-23 18:35:14 |
 forms1x003.jpg | 7977 | 2021-04-23 18:35:14 |
 forms1xu001.jpg | 7911 | 2021-04-23 18:35:14 |
| R1.htm | 14317 | 2021-04-23 18:35:14 |
| R10.htm | 17540 | 2021-04-23 18:35:14 |
| R11.htm | 9678 | 2021-04-23 18:35:14 |
| R12.htm | 4820 | 2021-04-23 18:35:14 |
| R13.htm | 10625 | 2021-04-23 18:35:14 |
| R14.htm | 10157 | 2021-04-23 18:35:14 |
| R15.htm | 194582 | 2021-04-23 18:35:14 |
| R16.htm | 6937 | 2021-04-23 18:35:14 |
| R17.htm | 34220 | 2021-04-23 18:35:14 |
| R18.htm | 10353 | 2021-04-23 18:35:14 |
| R19.htm | 6428 | 2021-04-23 18:35:14 |
| R2.htm | 63281 | 2021-04-23 18:35:14 |
| R20.htm | 72993 | 2021-04-23 18:35:14 |
| R21.htm | 15179 | 2021-04-23 18:35:14 |
| R22.htm | 193663 | 2021-04-23 18:35:14 |
| R23.htm | 32404 | 2021-04-23 18:35:14 |
| R24.htm | 11026 | 2021-04-23 18:35:14 |
| R25.htm | 6474 | 2021-04-23 18:35:14 |
| R26.htm | 21848 | 2021-04-23 18:35:14 |
| R27.htm | 13831 | 2021-04-23 18:35:14 |
| R28.htm | 29369 | 2021-04-23 18:35:14 |
| R29.htm | 51289 | 2021-04-23 18:35:14 |
| R3.htm | 11030 | 2021-04-23 18:35:14 |
| R30.htm | 53483 | 2021-04-23 18:35:14 |
| R31.htm | 4462 | 2021-04-23 18:35:14 |
| R32.htm | 4358 | 2021-04-23 18:35:14 |
| R33.htm | 20749 | 2021-04-23 18:35:14 |
| R34.htm | 12806 | 2021-04-23 18:35:14 |
| R35.htm | 17970 | 2021-04-23 18:35:14 |
| R36.htm | 24201 | 2021-04-23 18:35:14 |
| R37.htm | 103095 | 2021-04-23 18:35:14 |
| R38.htm | 18852 | 2021-04-23 18:35:14 |
| R39.htm | 32672 | 2021-04-23 18:35:14 |
| R4.htm | 61520 | 2021-04-23 18:35:14 |
| R40.htm | 21391 | 2021-04-23 18:35:14 |
| R41.htm | 23112 | 2021-04-23 18:35:14 |
| R5.htm | 79009 | 2021-04-23 18:35:14 |
| R6.htm | 73471 | 2021-04-23 18:35:14 |
| R7.htm | 8283 | 2021-04-23 18:35:14 |
| R8.htm | 12008 | 2021-04-23 18:35:14 |
| R9.htm | 35849 | 2021-04-23 18:35:14 |
| report.css | 2768 | 2021-04-23 18:35:14 |
| Show.js | 1086 | 2021-04-23 18:35:14 |