Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000034067-19-000029-index-headers.html | 2019-07-25 16:37:36 | |
| 0000034067-19-000029-index.html | 2019-07-25 16:37:36 | |
| 0000034067-19-000029.txt | 2019-07-25 16:37:36 | |
 0000034067-19-000029-xbrl.zip | 153800 | 2019-07-25 16:37:36 |
| a0630201910q.htm | 1369415 | 2019-07-25 16:37:36 |
| boom-20190630.xml | 1320302 | 2019-07-25 16:37:36 |
| boom-20190630.xsd | 30832 | 2019-07-25 16:37:36 |
| boom-20190630_cal.xml | 78932 | 2019-07-25 16:37:36 |
| boom-20190630_def.xml | 131335 | 2019-07-25 16:37:36 |
| boom-20190630_lab.xml | 468385 | 2019-07-25 16:37:36 |
| boom-20190630_pre.xml | 271455 | 2019-07-25 16:37:36 |
| boom-exx311_q2x06302019.htm | 12657 | 2019-07-25 16:37:36 |
| boom-exx312_q2x06302019.htm | 12388 | 2019-07-25 16:37:36 |
| boom-exx321_q2x06302019.htm | 7239 | 2019-07-25 16:37:36 |
| boom-exx322_q2x06302019.htm | 7237 | 2019-07-25 16:37:36 |
| FilingSummary.xml | 27757 | 2019-07-25 16:37:36 |
| Financial_Report.xlsx | 62599 | 2019-07-25 16:37:36 |
| R1.htm | 27856 | 2019-07-25 16:37:36 |
| R10.htm | 16128 | 2019-07-25 16:37:36 |
| R11.htm | 33304 | 2019-07-25 16:37:36 |
| R12.htm | 14338 | 2019-07-25 16:37:36 |
| R13.htm | 21020 | 2019-07-25 16:37:36 |
| R14.htm | 28470 | 2019-07-25 16:37:36 |
| R15.htm | 8229 | 2019-07-25 16:37:36 |
| R16.htm | 186996 | 2019-07-25 16:37:36 |
| R17.htm | 18276 | 2019-07-25 16:37:36 |
| R18.htm | 13885 | 2019-07-25 16:37:36 |
| R19.htm | 64684 | 2019-07-25 16:37:36 |
| R2.htm | 91892 | 2019-07-25 16:37:36 |
| R20.htm | 48812 | 2019-07-25 16:37:36 |
| R21.htm | 53492 | 2019-07-25 16:37:36 |
| R22.htm | 16074 | 2019-07-25 16:37:36 |
| R23.htm | 32443 | 2019-07-25 16:37:36 |
| R24.htm | 12453 | 2019-07-25 16:37:36 |
| R25.htm | 17760 | 2019-07-25 16:37:36 |
| R26.htm | 20046 | 2019-07-25 16:37:36 |
| R27.htm | 186862 | 2019-07-25 16:37:36 |
| R28.htm | 15237 | 2019-07-25 16:37:36 |
| R29.htm | 66192 | 2019-07-25 16:37:36 |
| R3.htm | 21630 | 2019-07-25 16:37:36 |
| R30.htm | 5001 | 2019-07-25 16:37:36 |
| R31.htm | 39174 | 2019-07-25 16:37:36 |
| R32.htm | 14475 | 2019-07-25 16:37:36 |
| R33.htm | 17113 | 2019-07-25 16:37:36 |
| R34.htm | 11755 | 2019-07-25 16:37:36 |
| R35.htm | 17156 | 2019-07-25 16:37:36 |
| R36.htm | 20697 | 2019-07-25 16:37:36 |
| R37.htm | 20387 | 2019-07-25 16:37:36 |
| R38.htm | 40128 | 2019-07-25 16:37:36 |
| R39.htm | 11221 | 2019-07-25 16:37:36 |
| R4.htm | 60718 | 2019-07-25 16:37:36 |
| R40.htm | 37472 | 2019-07-25 16:37:36 |
| R41.htm | 70931 | 2019-07-25 16:37:36 |
| R42.htm | 7802 | 2019-07-25 16:37:36 |
| R43.htm | 7606 | 2019-07-25 16:37:36 |
| R44.htm | 22829 | 2019-07-25 16:37:36 |
| R45.htm | 19995 | 2019-07-25 16:37:36 |
| R46.htm | 21067 | 2019-07-25 16:37:36 |
| R5.htm | 11992 | 2019-07-25 16:37:36 |
| R6.htm | 54245 | 2019-07-25 16:37:36 |
| R7.htm | 81125 | 2019-07-25 16:37:36 |
| R8.htm | 5721 | 2019-07-25 16:37:36 |
| R9.htm | 76741 | 2019-07-25 16:37:36 |
| R9999.htm | 6146 | 2019-07-25 16:37:36 |
| report.css | 2767 | 2019-07-25 16:37:36 |
| Show.js | 1085 | 2019-07-25 16:37:36 |