Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-22-019241-index-headers.html | 2022-05-10 15:38:44 | |
| 0001564590-22-019241-index.html | 2022-05-10 15:38:44 | |
| 0001564590-22-019241.txt | 2022-05-10 15:38:44 | |
 0001564590-22-019241-xbrl.zip | 178389 | 2022-05-10 15:38:44 |
| ctg-10q_20220401.htm | 2115034 | 2022-05-10 15:38:44 |
| ctg-10q_20220401_htm.xml | 1838333 | 2022-05-10 15:38:44 |
| ctg-20220401.xsd | 65871 | 2022-05-10 15:38:44 |
| ctg-20220401_cal.xml | 58895 | 2022-05-10 15:38:44 |
| ctg-20220401_def.xml | 196743 | 2022-05-10 15:38:44 |
| ctg-20220401_lab.xml | 474803 | 2022-05-10 15:38:44 |
| ctg-20220401_pre.xml | 370600 | 2022-05-10 15:38:44 |
| ctg-ex311_6.htm | 15467 | 2022-05-10 15:38:44 |
| ctg-ex312_8.htm | 15665 | 2022-05-10 15:38:44 |
| ctg-ex32_7.htm | 9220 | 2022-05-10 15:38:44 |
| FilingSummary.xml | 45597 | 2022-05-10 15:38:44 |
| Financial_Report.xlsx | 95559 | 2022-05-10 15:38:44 |
| MetaLinks.json | 692464 | 2022-05-10 15:38:44 |
| R1.htm | 53963 | 2022-05-10 15:38:44 |
| R10.htm | 296913 | 2022-05-10 15:38:44 |
| R11.htm | 8348 | 2022-05-10 15:38:44 |
| R12.htm | 38149 | 2022-05-10 15:38:44 |
| R13.htm | 48856 | 2022-05-10 15:38:44 |
| R14.htm | 16642 | 2022-05-10 15:38:44 |
| R15.htm | 37253 | 2022-05-10 15:38:44 |
| R16.htm | 8395 | 2022-05-10 15:38:44 |
| R17.htm | 66859 | 2022-05-10 15:38:44 |
| R18.htm | 9336 | 2022-05-10 15:38:44 |
| R19.htm | 6279 | 2022-05-10 15:38:44 |
| R2.htm | 68467 | 2022-05-10 15:38:44 |
| R20.htm | 6131 | 2022-05-10 15:38:44 |
| R21.htm | 137853 | 2022-05-10 15:38:44 |
| R22.htm | 329857 | 2022-05-10 15:38:44 |
| R23.htm | 286565 | 2022-05-10 15:38:44 |
| R24.htm | 35978 | 2022-05-10 15:38:44 |
| R25.htm | 47366 | 2022-05-10 15:38:44 |
| R26.htm | 36980 | 2022-05-10 15:38:44 |
| R27.htm | 55796 | 2022-05-10 15:38:44 |
| R28.htm | 124389 | 2022-05-10 15:38:44 |
| R29.htm | 4148 | 2022-05-10 15:38:44 |
| R3.htm | 27472 | 2022-05-10 15:38:44 |
| R30.htm | 6493 | 2022-05-10 15:38:44 |
| R31.htm | 24141 | 2022-05-10 15:38:44 |
| R32.htm | 19689 | 2022-05-10 15:38:44 |
| R33.htm | 10682 | 2022-05-10 15:38:44 |
| R34.htm | 20874 | 2022-05-10 15:38:44 |
| R35.htm | 13639 | 2022-05-10 15:38:44 |
| R36.htm | 8246 | 2022-05-10 15:38:44 |
| R37.htm | 12613 | 2022-05-10 15:38:44 |
| R38.htm | 22053 | 2022-05-10 15:38:44 |
| R39.htm | 3795 | 2022-05-10 15:38:44 |
| R4.htm | 5325 | 2022-05-10 15:38:44 |
| R40.htm | 12001 | 2022-05-10 15:38:44 |
| R41.htm | 11038 | 2022-05-10 15:38:44 |
| R42.htm | 6677 | 2022-05-10 15:38:44 |
| R43.htm | 8849 | 2022-05-10 15:38:44 |
| R44.htm | 8488 | 2022-05-10 15:38:44 |
| R45.htm | 6507 | 2022-05-10 15:38:44 |
| R46.htm | 11790 | 2022-05-10 15:38:44 |
| R47.htm | 7656 | 2022-05-10 15:38:44 |
| R48.htm | 26865 | 2022-05-10 15:38:44 |
| R49.htm | 19751 | 2022-05-10 15:38:44 |
| R5.htm | 115134 | 2022-05-10 15:38:44 |
| R50.htm | 34685 | 2022-05-10 15:38:44 |
| R51.htm | 35531 | 2022-05-10 15:38:44 |
| R52.htm | 6887 | 2022-05-10 15:38:44 |
| R53.htm | 10839 | 2022-05-10 15:38:44 |
| R54.htm | 20464 | 2022-05-10 15:38:44 |
| R55.htm | 13622 | 2022-05-10 15:38:44 |
| R56.htm | 37566 | 2022-05-10 15:38:44 |
| R57.htm | 13329 | 2022-05-10 15:38:44 |
| R58.htm | 4997 | 2022-05-10 15:38:44 |
| R59.htm | 11079 | 2022-05-10 15:38:44 |
| R6.htm | 12965 | 2022-05-10 15:38:44 |
| R60.htm | 4439 | 2022-05-10 15:38:44 |
| R61.htm | 40043 | 2022-05-10 15:38:44 |
| R62.htm | 20641 | 2022-05-10 15:38:44 |
| R63.htm | 17676 | 2022-05-10 15:38:44 |
| R64.htm | 45962 | 2022-05-10 15:38:44 |
| R65.htm | 14946 | 2022-05-10 15:38:44 |
| R66.htm | 24002 | 2022-05-10 15:38:44 |
| R67.htm | 27053 | 2022-05-10 15:38:44 |
| R68.htm | 35757 | 2022-05-10 15:38:44 |
| R7.htm | 73350 | 2022-05-10 15:38:44 |
| R8.htm | 55959 | 2022-05-10 15:38:44 |
| R9.htm | 6949 | 2022-05-10 15:38:44 |
| report.css | 2767 | 2022-05-10 15:38:44 |
| Show.js | 1085 | 2022-05-10 15:38:44 |