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| 0000741815-17-000035-index.html | 2017-05-15 17:05:18 | |
| 0000741815-17-000035.txt | 2017-05-15 17:05:18 | |
 0000741815-17-000035-xbrl.zip | 143317 | 2017-05-15 17:05:18 |
| exhibit311q12017.htm | 8785 | 2017-05-15 17:05:18 |
| exhibit312q12017.htm | 8843 | 2017-05-15 17:05:18 |
| exhibit321q12017.htm | 5638 | 2017-05-15 17:05:18 |
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| hh-20170331.xsd | 38103 | 2017-05-15 17:05:18 |
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| report.css | 2767 | 2017-05-15 17:05:18 |
| Show.js | 1410 | 2017-05-15 17:05:18 |