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| 0000034067-20-000009-index.html | 2020-02-24 07:43:15 | |
| 0000034067-20-000009.txt | 2020-02-24 07:43:15 | |
 0000034067-20-000009-xbrl.zip | 258808 | 2020-02-24 07:43:15 |
| a2019123110k.htm | 2184909 | 2020-02-24 07:43:15 |
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| boom-exx231_20191231x10k.htm | 6647 | 2020-02-24 07:43:15 |
| boom-exx311_20181231x10k1.htm | 12706 | 2020-02-24 07:43:15 |
| boom-exx312_20181231x10k1.htm | 12437 | 2020-02-24 07:43:15 |
| boom-exx321_20181231x10k1.htm | 7292 | 2020-02-24 07:43:15 |
| boom-exx322_20181231x10k1.htm | 7290 | 2020-02-24 07:43:15 |
| boom-exx41_descriptionxofx.htm | 11448 | 2020-02-24 07:43:15 |
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| FilingSummary.xml | 35377 | 2020-02-24 07:43:15 |
| Financial_Report.xlsx | 94601 | 2020-02-24 07:43:15 |
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| R9999.htm | 4625 | 2020-02-24 07:43:15 |
| report.css | 2767 | 2020-02-24 07:43:15 |
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