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| 0001564590-18-011017-index.html | 2018-05-04 16:46:07 | |
| 0001564590-18-011017.txt | 2018-05-04 16:46:07 | |
 0001564590-18-011017-xbrl.zip | 115937 | 2018-05-04 16:46:07 |
| ctg-10q_20180330.htm | 1025245 | 2018-05-04 16:46:07 |
| ctg-20180330.xml | 927295 | 2018-05-04 16:46:07 |
| ctg-20180330.xsd | 52619 | 2018-05-04 16:46:07 |
| ctg-20180330_cal.xml | 48817 | 2018-05-04 16:46:07 |
| ctg-20180330_def.xml | 163783 | 2018-05-04 16:46:07 |
| ctg-20180330_lab.xml | 385903 | 2018-05-04 16:46:07 |
| ctg-20180330_pre.xml | 288174 | 2018-05-04 16:46:07 |
| ctg-ex31a_9.htm | 15461 | 2018-05-04 16:46:07 |
| ctg-ex31b_6.htm | 15666 | 2018-05-04 16:46:07 |
| ctg-ex32_8.htm | 9215 | 2018-05-04 16:46:07 |
| FilingSummary.xml | 34193 | 2018-05-04 16:46:07 |
| Financial_Report.xlsx | 67457 | 2018-05-04 16:46:07 |
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| report.css | 2767 | 2018-05-04 16:46:07 |
| Show.js | 1410 | 2018-05-04 16:46:07 |