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| 0001213900-19-008767-index.html | 2019-05-15 14:30:05 | |
| 0001213900-19-008767.txt | 2019-05-15 14:30:05 | |
 0001213900-19-008767-xbrl.zip | 54440 | 2019-05-15 14:30:05 |
| f10q0319ex31-1_hennessy.htm | 7078 | 2019-05-15 14:30:05 |
| f10q0319ex31-2_hennessy.htm | 7288 | 2019-05-15 14:30:05 |
| f10q0319ex32-1_hennessy.htm | 3141 | 2019-05-15 14:30:05 |
| f10q0319ex32-2_hennessy.htm | 3360 | 2019-05-15 14:30:05 |
| f10q0319_hennessycapital4.htm | 254286 | 2019-05-15 14:30:05 |
| FilingSummary.xml | 15216 | 2019-05-15 14:30:05 |
| Financial_Report.xlsx | 39105 | 2019-05-15 14:30:05 |
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| hcac-20190331.xsd | 22152 | 2019-05-15 14:30:05 |
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| hcac-20190331_lab.xml | 159899 | 2019-05-15 14:30:05 |
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| R9.htm | 25440 | 2019-05-15 14:30:05 |
| report.css | 2767 | 2019-05-15 14:30:05 |
| Show.js | 1085 | 2019-05-15 14:30:05 |