Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001144204-18-015276-index-headers.html | 2018-03-16 16:07:01 | |
| 0001144204-18-015276-index.html | 2018-03-16 16:07:01 | |
| 0001144204-18-015276.txt | 2018-03-16 16:07:01 | |
 0001144204-18-015276-xbrl.zip | 197210 | 2018-03-16 16:07:01 |
| FilingSummary.xml | 38934 | 2018-03-16 16:07:01 |
| Financial_Report.xlsx | 94411 | 2018-03-16 16:07:01 |
| hdsn-20171231.xml | 1945205 | 2018-03-16 16:07:01 |
| hdsn-20171231.xsd | 57849 | 2018-03-16 16:07:01 |
| hdsn-20171231_cal.xml | 69421 | 2018-03-16 16:07:01 |
| hdsn-20171231_def.xml | 372079 | 2018-03-16 16:07:01 |
| hdsn-20171231_lab.xml | 482345 | 2018-03-16 16:07:01 |
| hdsn-20171231_pre.xml | 437866 | 2018-03-16 16:07:01 |
| R1.htm | 30099 | 2018-03-16 16:07:01 |
| R10.htm | 14018 | 2018-03-16 16:07:01 |
| R11.htm | 50434 | 2018-03-16 16:07:01 |
| R12.htm | 71716 | 2018-03-16 16:07:01 |
| R13.htm | 73695 | 2018-03-16 16:07:01 |
| R14.htm | 80502 | 2018-03-16 16:07:01 |
| R15.htm | 11870 | 2018-03-16 16:07:01 |
| R16.htm | 49571 | 2018-03-16 16:07:01 |
| R17.htm | 85198 | 2018-03-16 16:07:01 |
| R18.htm | 62294 | 2018-03-16 16:07:01 |
| R19.htm | 123664 | 2018-03-16 16:07:01 |
| R2.htm | 76872 | 2018-03-16 16:07:01 |
| R20.htm | 135042 | 2018-03-16 16:07:01 |
| R21.htm | 44690 | 2018-03-16 16:07:01 |
| R22.htm | 61984 | 2018-03-16 16:07:01 |
| R23.htm | 16623 | 2018-03-16 16:07:01 |
| R24.htm | 15032 | 2018-03-16 16:07:01 |
| R25.htm | 49105 | 2018-03-16 16:07:01 |
| R26.htm | 70445 | 2018-03-16 16:07:01 |
| R27.htm | 66289 | 2018-03-16 16:07:01 |
| R28.htm | 60620 | 2018-03-16 16:07:01 |
| R29.htm | 45096 | 2018-03-16 16:07:01 |
| R3.htm | 22160 | 2018-03-16 16:07:01 |
| R30.htm | 80324 | 2018-03-16 16:07:01 |
| R31.htm | 53516 | 2018-03-16 16:07:01 |
| R32.htm | 122442 | 2018-03-16 16:07:01 |
| R33.htm | 12200 | 2018-03-16 16:07:01 |
| R34.htm | 23053 | 2018-03-16 16:07:01 |
| R35.htm | 52045 | 2018-03-16 16:07:01 |
| R36.htm | 10211 | 2018-03-16 16:07:01 |
| R37.htm | 17689 | 2018-03-16 16:07:01 |
| R38.htm | 10251 | 2018-03-16 16:07:01 |
| R39.htm | 4906 | 2018-03-16 16:07:01 |
| R4.htm | 47046 | 2018-03-16 16:07:01 |
| R40.htm | 9096 | 2018-03-16 16:07:01 |
| R41.htm | 60656 | 2018-03-16 16:07:01 |
| R42.htm | 7606 | 2018-03-16 16:07:01 |
| R43.htm | 27724 | 2018-03-16 16:07:01 |
| R44.htm | 16448 | 2018-03-16 16:07:01 |
| R45.htm | 15941 | 2018-03-16 16:07:01 |
| R46.htm | 25107 | 2018-03-16 16:07:01 |
| R47.htm | 34712 | 2018-03-16 16:07:01 |
| R48.htm | 29650 | 2018-03-16 16:07:01 |
| R49.htm | 25960 | 2018-03-16 16:07:01 |
| R5.htm | 45101 | 2018-03-16 16:07:01 |
| R50.htm | 17927 | 2018-03-16 16:07:01 |
| R51.htm | 14301 | 2018-03-16 16:07:01 |
| R52.htm | 60562 | 2018-03-16 16:07:01 |
| R53.htm | 48917 | 2018-03-16 16:07:01 |
| R54.htm | 41898 | 2018-03-16 16:07:01 |
| R55.htm | 16042 | 2018-03-16 16:07:01 |
| R56.htm | 6943 | 2018-03-16 16:07:01 |
| R57.htm | 17114 | 2018-03-16 16:07:01 |
| R58.htm | 24793 | 2018-03-16 16:07:01 |
| R59.htm | 26616 | 2018-03-16 16:07:01 |
| R6.htm | 96716 | 2018-03-16 16:07:01 |
| R60.htm | 7283 | 2018-03-16 16:07:01 |
| R61.htm | 40305 | 2018-03-16 16:07:01 |
| R62.htm | 36843 | 2018-03-16 16:07:01 |
| R63.htm | 9113 | 2018-03-16 16:07:01 |
| R64.htm | 54057 | 2018-03-16 16:07:01 |
| R65.htm | 38107 | 2018-03-16 16:07:01 |
| R7.htm | 95613 | 2018-03-16 16:07:01 |
| R8.htm | 61172 | 2018-03-16 16:07:01 |
| R9.htm | 19514 | 2018-03-16 16:07:01 |
| report.css | 2767 | 2018-03-16 16:07:01 |
| Show.js | 1410 | 2018-03-16 16:07:01 |
| tv488247_10k.htm | 769833 | 2018-03-16 16:07:01 |
| tv488247_ex21.htm | 2031 | 2018-03-16 16:07:01 |
| tv488247_ex23-1.htm | 2876 | 2018-03-16 16:07:01 |
| tv488247_ex31-1.htm | 9145 | 2018-03-16 16:07:01 |
| tv488247_ex31-2.htm | 9159 | 2018-03-16 16:07:01 |
| tv488247_ex32-1.htm | 4170 | 2018-03-16 16:07:01 |
| tv488247_ex32-2.htm | 4130 | 2018-03-16 16:07:01 |
 tv488247_img1.jpg | 59333 | 2018-03-16 16:07:01 |