Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001161697-22-000096-index-headers.html | 2022-02-14 17:23:48 | |
| 0001161697-22-000096-index.html | 2022-02-14 17:23:48 | |
| 0001161697-22-000096.txt | 2022-02-14 17:23:48 | |
 0001161697-22-000096-xbrl.zip | 78792 | 2022-02-14 17:23:48 |
| ex_31-1.htm | 10220 | 2022-02-14 17:23:48 |
| ex_31-2.htm | 10211 | 2022-02-14 17:23:48 |
| ex_32-1.htm | 4985 | 2022-02-14 17:23:48 |
| ex_32-2.htm | 4976 | 2022-02-14 17:23:48 |
| FilingSummary.xml | 15611 | 2022-02-14 17:23:48 |
| Financial_Report.xlsx | 35485 | 2022-02-14 17:23:48 |
| form_10-q.htm | 366814 | 2022-02-14 17:23:48 |
| form_10-q_htm.xml | 212335 | 2022-02-14 17:23:48 |
| gstc-20211231.xsd | 22167 | 2022-02-14 17:23:48 |
| gstc-20211231_cal.xml | 25039 | 2022-02-14 17:23:48 |
| gstc-20211231_def.xml | 88556 | 2022-02-14 17:23:48 |
| gstc-20211231_lab.xml | 194140 | 2022-02-14 17:23:48 |
| gstc-20211231_pre.xml | 149514 | 2022-02-14 17:23:48 |
| MetaLinks.json | 296167 | 2022-02-14 17:23:48 |
| R1.htm | 52270 | 2022-02-14 17:23:48 |
| R10.htm | 10821 | 2022-02-14 17:23:48 |
| R11.htm | 41965 | 2022-02-14 17:23:48 |
| R12.htm | 8831 | 2022-02-14 17:23:48 |
| R13.htm | 5279 | 2022-02-14 17:23:48 |
| R14.htm | 11911 | 2022-02-14 17:23:48 |
| R15.htm | 7897 | 2022-02-14 17:23:48 |
| R16.htm | 17872 | 2022-02-14 17:23:48 |
| R17.htm | 18703 | 2022-02-14 17:23:48 |
| R18.htm | 20284 | 2022-02-14 17:23:48 |
| R19.htm | 23990 | 2022-02-14 17:23:48 |
| R2.htm | 88192 | 2022-02-14 17:23:48 |
| R20.htm | 29261 | 2022-02-14 17:23:48 |
| R21.htm | 19540 | 2022-02-14 17:23:48 |
| R22.htm | 23124 | 2022-02-14 17:23:48 |
| R23.htm | 75711 | 2022-02-14 17:23:48 |
| R24.htm | 20912 | 2022-02-14 17:23:48 |
| R3.htm | 35515 | 2022-02-14 17:23:48 |
| R4.htm | 32392 | 2022-02-14 17:23:48 |
| R5.htm | 48552 | 2022-02-14 17:23:48 |
| R6.htm | 67197 | 2022-02-14 17:23:48 |
| R7.htm | 6544 | 2022-02-14 17:23:48 |
| R8.htm | 12292 | 2022-02-14 17:23:48 |
| R9.htm | 15731 | 2022-02-14 17:23:48 |
| report.css | 2767 | 2022-02-14 17:23:48 |
| Show.js | 1085 | 2022-02-14 17:23:48 |