Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-17-014388-index-headers.html | 2017-07-28 16:01:23 | |
| 0001564590-17-014388-index.html | 2017-07-28 16:01:23 | |
| 0001564590-17-014388.txt | 2017-07-28 16:01:23 | |
 0001564590-17-014388-xbrl.zip | 99259 | 2017-07-28 16:01:23 |
| ctg-10q_20170630.htm | 1239215 | 2017-07-28 16:01:23 |
| ctg-20170630.xml | 937439 | 2017-07-28 16:01:23 |
| ctg-20170630.xsd | 44653 | 2017-07-28 16:01:23 |
| ctg-20170630_cal.xml | 46541 | 2017-07-28 16:01:23 |
| ctg-20170630_def.xml | 120079 | 2017-07-28 16:01:23 |
| ctg-20170630_lab.xml | 320200 | 2017-07-28 16:01:23 |
| ctg-20170630_pre.xml | 243053 | 2017-07-28 16:01:23 |
| ctg-ex31a_7.htm | 15463 | 2017-07-28 16:01:23 |
| ctg-ex31b_6.htm | 15668 | 2017-07-28 16:01:23 |
| ctg-ex32_8.htm | 9218 | 2017-07-28 16:01:23 |
| FilingSummary.xml | 32189 | 2017-07-28 16:01:23 |
| Financial_Report.xlsx | 60507 | 2017-07-28 16:01:23 |
| R1.htm | 21941 | 2017-07-28 16:01:23 |
| R10.htm | 11270 | 2017-07-28 16:01:23 |
| R11.htm | 62865 | 2017-07-28 16:01:23 |
| R12.htm | 6944 | 2017-07-28 16:01:23 |
| R13.htm | 8149 | 2017-07-28 16:01:23 |
| R14.htm | 48932 | 2017-07-28 16:01:23 |
| R15.htm | 7544 | 2017-07-28 16:01:23 |
| R16.htm | 66023 | 2017-07-28 16:01:23 |
| R17.htm | 10069 | 2017-07-28 16:01:23 |
| R18.htm | 7291 | 2017-07-28 16:01:23 |
| R19.htm | 7328 | 2017-07-28 16:01:23 |
| R2.htm | 42687 | 2017-07-28 16:01:23 |
| R20.htm | 137523 | 2017-07-28 16:01:23 |
| R21.htm | 106276 | 2017-07-28 16:01:23 |
| R22.htm | 61611 | 2017-07-28 16:01:23 |
| R23.htm | 49790 | 2017-07-28 16:01:23 |
| R24.htm | 61682 | 2017-07-28 16:01:23 |
| R25.htm | 4457 | 2017-07-28 16:01:23 |
| R26.htm | 6235 | 2017-07-28 16:01:23 |
| R27.htm | 12570 | 2017-07-28 16:01:23 |
| R28.htm | 21282 | 2017-07-28 16:01:23 |
| R29.htm | 5633 | 2017-07-28 16:01:23 |
| R3.htm | 17059 | 2017-07-28 16:01:23 |
| R30.htm | 16326 | 2017-07-28 16:01:23 |
| R31.htm | 10486 | 2017-07-28 16:01:23 |
| R32.htm | 21900 | 2017-07-28 16:01:23 |
| R33.htm | 4462 | 2017-07-28 16:01:23 |
| R34.htm | 21072 | 2017-07-28 16:01:23 |
| R35.htm | 11699 | 2017-07-28 16:01:23 |
| R36.htm | 20061 | 2017-07-28 16:01:23 |
| R37.htm | 6884 | 2017-07-28 16:01:23 |
| R38.htm | 4866 | 2017-07-28 16:01:23 |
| R39.htm | 41149 | 2017-07-28 16:01:23 |
| R4.htm | 5626 | 2017-07-28 16:01:23 |
| R40.htm | 12033 | 2017-07-28 16:01:23 |
| R41.htm | 4989 | 2017-07-28 16:01:23 |
| R42.htm | 10669 | 2017-07-28 16:01:23 |
| R43.htm | 18474 | 2017-07-28 16:01:23 |
| R44.htm | 11480 | 2017-07-28 16:01:23 |
| R45.htm | 27542 | 2017-07-28 16:01:23 |
| R46.htm | 12965 | 2017-07-28 16:01:23 |
| R47.htm | 79592 | 2017-07-28 16:01:23 |
| R48.htm | 21258 | 2017-07-28 16:01:23 |
| R49.htm | 24284 | 2017-07-28 16:01:23 |
| R5.htm | 72281 | 2017-07-28 16:01:23 |
| R6.htm | 13176 | 2017-07-28 16:01:23 |
| R7.htm | 83221 | 2017-07-28 16:01:23 |
| R8.htm | 6665 | 2017-07-28 16:01:23 |
| R9.htm | 121016 | 2017-07-28 16:01:23 |
| report.css | 2767 | 2017-07-28 16:01:23 |
| Show.js | 1410 | 2017-07-28 16:01:23 |