Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001052257-14-000003-index-headers.html | 2014-04-14 15:28:51 | |
| 0001052257-14-000003-index.html | 2014-04-14 15:28:51 | |
| 0001052257-14-000003.txt | 2014-04-14 15:28:51 | |
 0001052257-14-000003-xbrl.zip | 200479 | 2014-04-14 15:28:51 |
| ex231.htm | 2944 | 2014-04-14 15:28:51 |
| ex311.htm | 10000 | 2014-04-14 15:28:51 |
| ex312.htm | 9994 | 2014-04-14 15:28:51 |
| ex321.htm | 5392 | 2014-04-14 15:28:51 |
| ex322.htm | 5396 | 2014-04-14 15:28:51 |
| FilingSummary.xml | 24598 | 2014-04-14 15:28:51 |
| Financial_Report.xls | 878296 | 2014-04-14 15:28:51 |
| Financial_Report.xlsx | 151097 | 2014-04-14 15:28:51 |
| R1.htm | 37262 | 2014-04-14 15:28:51 |
| R10.htm | 13282 | 2014-04-14 15:28:51 |
| R11.htm | 16431 | 2014-04-14 15:28:51 |
| R12.htm | 11272 | 2014-04-14 15:28:51 |
| R13.htm | 11076 | 2014-04-14 15:28:51 |
| R14.htm | 10695 | 2014-04-14 15:28:51 |
| R15.htm | 15899 | 2014-04-14 15:28:51 |
| R16.htm | 7126 | 2014-04-14 15:28:51 |
| R17.htm | 31222 | 2014-04-14 15:28:51 |
| R18.htm | 37585 | 2014-04-14 15:28:51 |
| R19.htm | 84423 | 2014-04-14 15:28:51 |
| R2.htm | 94780 | 2014-04-14 15:28:51 |
| R20.htm | 8389 | 2014-04-14 15:28:51 |
| R21.htm | 15394 | 2014-04-14 15:28:51 |
| R22.htm | 6999 | 2014-04-14 15:28:51 |
| R23.htm | 13769 | 2014-04-14 15:28:51 |
| R24.htm | 8342 | 2014-04-14 15:28:51 |
| R25.htm | 7616 | 2014-04-14 15:28:51 |
| R26.htm | 12823 | 2014-04-14 15:28:51 |
| R27.htm | 12024 | 2014-04-14 15:28:51 |
| R28.htm | 151277 | 2014-04-14 15:28:51 |
| R29.htm | 41704 | 2014-04-14 15:28:51 |
| R3.htm | 30188 | 2014-04-14 15:28:51 |
| R30.htm | 11056 | 2014-04-14 15:28:51 |
| R31.htm | 14579 | 2014-04-14 15:28:51 |
| R32.htm | 9954 | 2014-04-14 15:28:51 |
| R33.htm | 15616 | 2014-04-14 15:28:51 |
| R34.htm | 81397 | 2014-04-14 15:28:51 |
| R35.htm | 11254 | 2014-04-14 15:28:51 |
| R36.htm | 9761 | 2014-04-14 15:28:51 |
| R37.htm | 83507 | 2014-04-14 15:28:51 |
| R38.htm | 25713 | 2014-04-14 15:28:51 |
| R39.htm | 32333 | 2014-04-14 15:28:51 |
| R4.htm | 88646 | 2014-04-14 15:28:51 |
| R40.htm | 42177 | 2014-04-14 15:28:51 |
| R41.htm | 15963 | 2014-04-14 15:28:51 |
| R42.htm | 64460 | 2014-04-14 15:28:51 |
| R43.htm | 71533 | 2014-04-14 15:28:51 |
| R44.htm | 19953 | 2014-04-14 15:28:51 |
| R45.htm | 99635 | 2014-04-14 15:28:51 |
| R46.htm | 234612 | 2014-04-14 15:28:51 |
| R47.htm | 84386 | 2014-04-14 15:28:51 |
| R48.htm | 94160 | 2014-04-14 15:28:51 |
| R49.htm | 32867 | 2014-04-14 15:28:51 |
| R5.htm | 136930 | 2014-04-14 15:28:51 |
| R50.htm | 38124 | 2014-04-14 15:28:51 |
| R51.htm | 22353 | 2014-04-14 15:28:51 |
| R52.htm | 18039 | 2014-04-14 15:28:51 |
| R53.htm | 35699 | 2014-04-14 15:28:51 |
| R54.htm | 19973 | 2014-04-14 15:28:51 |
| R55.htm | 8367 | 2014-04-14 15:28:51 |
| R56.htm | 54687 | 2014-04-14 15:28:51 |
| R57.htm | 44502 | 2014-04-14 15:28:51 |
| R6.htm | 147338 | 2014-04-14 15:28:51 |
| R7.htm | 7835 | 2014-04-14 15:28:51 |
| R8.htm | 6239 | 2014-04-14 15:28:51 |
| R9.htm | 71152 | 2014-04-14 15:28:51 |
| report.css | 2740 | 2014-04-14 15:28:51 |
| Show.js | 1410 | 2014-04-14 15:28:51 |
| ztho-20131231.xml | 988567 | 2014-04-14 15:28:51 |
| ztho-20131231.xsd | 73857 | 2014-04-14 15:28:51 |
| ztho-20131231_cal.xml | 51735 | 2014-04-14 15:28:51 |
| ztho-20131231_def.xml | 360190 | 2014-04-14 15:28:51 |
| ztho-20131231_lab.xml | 907919 | 2014-04-14 15:28:51 |
| ztho-20131231_pre.xml | 522964 | 2014-04-14 15:28:51 |
| ztm10k2013.htm | 1118025 | 2014-04-14 15:28:51 |