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| 0001564590-17-008742-index.html | 2017-05-04 16:01:16 | |
| 0001564590-17-008742.txt | 2017-05-04 16:01:16 | |
 0001564590-17-008742-xbrl.zip | 86978 | 2017-05-04 16:01:16 |
| ctg-10q_20170331.htm | 929712 | 2017-05-04 16:01:16 |
| ctg-20170331.xml | 599120 | 2017-05-04 16:01:16 |
| ctg-20170331.xsd | 43484 | 2017-05-04 16:01:16 |
| ctg-20170331_cal.xml | 45604 | 2017-05-04 16:01:16 |
| ctg-20170331_def.xml | 108256 | 2017-05-04 16:01:16 |
| ctg-20170331_lab.xml | 298078 | 2017-05-04 16:01:16 |
| ctg-20170331_pre.xml | 228256 | 2017-05-04 16:01:16 |
| ctg-ex31a_6.htm | 15460 | 2017-05-04 16:01:16 |
| ctg-ex31b_8.htm | 15665 | 2017-05-04 16:01:16 |
| ctg-ex32_7.htm | 9214 | 2017-05-04 16:01:16 |
| FilingSummary.xml | 32188 | 2017-05-04 16:01:16 |
| Financial_Report.xlsx | 57123 | 2017-05-04 16:01:16 |
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| report.css | 2767 | 2017-05-04 16:01:16 |
| Show.js | 1410 | 2017-05-04 16:01:16 |