Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000102752-19-000057-index-headers.html | 2019-07-31 16:04:11 | |
| 0000102752-19-000057-index.html | 2019-07-31 16:04:11 | |
| 0000102752-19-000057.txt | 2019-07-31 16:04:11 | |
 0000102752-19-000057-xbrl.zip | 162927 | 2019-07-31 16:04:11 |
| FilingSummary.xml | 27627 | 2019-07-31 16:04:11 |
| Financial_Report.xlsx | 59825 | 2019-07-31 16:04:11 |
| R1.htm | 27722 | 2019-07-31 16:04:11 |
| R10.htm | 52260 | 2019-07-31 16:04:11 |
| R11.htm | 186902 | 2019-07-31 16:04:11 |
| R12.htm | 36989 | 2019-07-31 16:04:11 |
| R13.htm | 19646 | 2019-07-31 16:04:11 |
| R14.htm | 38645 | 2019-07-31 16:04:11 |
| R15.htm | 147172 | 2019-07-31 16:04:11 |
| R16.htm | 64523 | 2019-07-31 16:04:11 |
| R17.htm | 27583 | 2019-07-31 16:04:11 |
| R18.htm | 6280 | 2019-07-31 16:04:11 |
| R19.htm | 6421 | 2019-07-31 16:04:11 |
| R2.htm | 79466 | 2019-07-31 16:04:11 |
| R20.htm | 31631 | 2019-07-31 16:04:11 |
| R21.htm | 48005 | 2019-07-31 16:04:11 |
| R22.htm | 178696 | 2019-07-31 16:04:11 |
| R23.htm | 31715 | 2019-07-31 16:04:11 |
| R24.htm | 19217 | 2019-07-31 16:04:11 |
| R25.htm | 31099 | 2019-07-31 16:04:11 |
| R26.htm | 146657 | 2019-07-31 16:04:11 |
| R27.htm | 65277 | 2019-07-31 16:04:11 |
| R28.htm | 21709 | 2019-07-31 16:04:11 |
| R29.htm | 13015 | 2019-07-31 16:04:11 |
| R3.htm | 10704 | 2019-07-31 16:04:11 |
| R30.htm | 40950 | 2019-07-31 16:04:11 |
| R31.htm | 43913 | 2019-07-31 16:04:11 |
| R32.htm | 12356 | 2019-07-31 16:04:11 |
| R33.htm | 55988 | 2019-07-31 16:04:11 |
| R34.htm | 21817 | 2019-07-31 16:04:11 |
| R35.htm | 11017 | 2019-07-31 16:04:11 |
| R36.htm | 74550 | 2019-07-31 16:04:11 |
| R37.htm | 10011 | 2019-07-31 16:04:11 |
| R38.htm | 22174 | 2019-07-31 16:04:11 |
| R39.htm | 11305 | 2019-07-31 16:04:11 |
| R4.htm | 51681 | 2019-07-31 16:04:11 |
| R40.htm | 23724 | 2019-07-31 16:04:11 |
| R41.htm | 26644 | 2019-07-31 16:04:11 |
| R42.htm | 43910 | 2019-07-31 16:04:11 |
| R43.htm | 43612 | 2019-07-31 16:04:11 |
| R44.htm | 22017 | 2019-07-31 16:04:11 |
| R45.htm | 10440 | 2019-07-31 16:04:11 |
| R46.htm | 7230 | 2019-07-31 16:04:11 |
| R5.htm | 15038 | 2019-07-31 16:04:11 |
| R6.htm | 63679 | 2019-07-31 16:04:11 |
| R7.htm | 38539 | 2019-07-31 16:04:11 |
| R8.htm | 5085 | 2019-07-31 16:04:11 |
| R9.htm | 12077 | 2019-07-31 16:04:11 |
| R9999.htm | 8999 | 2019-07-31 16:04:11 |
| report.css | 2767 | 2019-07-31 16:04:11 |
| Show.js | 1085 | 2019-07-31 16:04:11 |
| vsec-20190630.xml | 1628299 | 2019-07-31 16:04:11 |
| vsec-20190630.xsd | 33479 | 2019-07-31 16:04:11 |
| vsec-20190630_cal.xml | 81475 | 2019-07-31 16:04:11 |
| vsec-20190630_def.xml | 186809 | 2019-07-31 16:04:11 |
| vsec-20190630_lab.xml | 497340 | 2019-07-31 16:04:11 |
| vsec-20190630_pre.xml | 296418 | 2019-07-31 16:04:11 |
| vsec-63019ex311.htm | 12978 | 2019-07-31 16:04:11 |
| vsec-63019ex312.htm | 13187 | 2019-07-31 16:04:11 |
| vsec-63019ex321.htm | 6515 | 2019-07-31 16:04:11 |
| vsec-63019ex322.htm | 6345 | 2019-07-31 16:04:11 |
| vsec-q2x2019x10q.htm | 1231865 | 2019-07-31 16:04:11 |