Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000865058-18-000045-index-headers.html | 2018-11-13 17:11:59 | |
| 0000865058-18-000045-index.html | 2018-11-13 17:11:59 | |
| 0000865058-18-000045.txt | 2018-11-13 17:11:59 | |
 0000865058-18-000045-xbrl.zip | 278030 | 2018-11-13 17:11:59 |
| exhibit3119-30x2018.htm | 8872 | 2018-11-13 17:11:59 |
| exhibit3129-30x2018.htm | 8672 | 2018-11-13 17:11:59 |
| exhibit3219-30x2018.htm | 7603 | 2018-11-13 17:11:59 |
| FilingSummary.xml | 49499 | 2018-11-13 17:11:59 |
| Financial_Report.xlsx | 101619 | 2018-11-13 17:11:59 |
 image1a01a13.jpg | 2297 | 2018-11-13 17:11:59 |
| nsec-20180930.xml | 3074466 | 2018-11-13 17:11:59 |
| nsec-20180930.xsd | 59805 | 2018-11-13 17:11:59 |
| nsec-20180930_cal.xml | 131720 | 2018-11-13 17:11:59 |
| nsec-20180930_def.xml | 301787 | 2018-11-13 17:11:59 |
| nsec-20180930_lab.xml | 775869 | 2018-11-13 17:11:59 |
| nsec-20180930_pre.xml | 480080 | 2018-11-13 17:11:59 |
| nsec9302018-10q.htm | 1970409 | 2018-11-13 17:11:59 |
| R1.htm | 20427 | 2018-11-13 17:11:59 |
| R10.htm | 9901 | 2018-11-13 17:11:59 |
| R11.htm | 313054 | 2018-11-13 17:11:59 |
| R12.htm | 206494 | 2018-11-13 17:11:59 |
| R13.htm | 17987 | 2018-11-13 17:11:59 |
| R14.htm | 74521 | 2018-11-13 17:11:59 |
| R15.htm | 39694 | 2018-11-13 17:11:59 |
| R16.htm | 37032 | 2018-11-13 17:11:59 |
| R17.htm | 13294 | 2018-11-13 17:11:59 |
| R18.htm | 9332 | 2018-11-13 17:11:59 |
| R19.htm | 29427 | 2018-11-13 17:11:59 |
| R2.htm | 99543 | 2018-11-13 17:11:59 |
| R20.htm | 58594 | 2018-11-13 17:11:59 |
| R21.htm | 346934 | 2018-11-13 17:11:59 |
| R22.htm | 7364 | 2018-11-13 17:11:59 |
| R23.htm | 6565 | 2018-11-13 17:11:59 |
| R24.htm | 6883 | 2018-11-13 17:11:59 |
| R25.htm | 84735 | 2018-11-13 17:11:59 |
| R26.htm | 317189 | 2018-11-13 17:11:59 |
| R27.htm | 192998 | 2018-11-13 17:11:59 |
| R28.htm | 16983 | 2018-11-13 17:11:59 |
| R29.htm | 75987 | 2018-11-13 17:11:59 |
| R3.htm | 9432 | 2018-11-13 17:11:59 |
| R30.htm | 37745 | 2018-11-13 17:11:59 |
| R31.htm | 33840 | 2018-11-13 17:11:59 |
| R32.htm | 7083 | 2018-11-13 17:11:59 |
| R33.htm | 28437 | 2018-11-13 17:11:59 |
| R34.htm | 59608 | 2018-11-13 17:11:59 |
| R35.htm | 348396 | 2018-11-13 17:11:59 |
| R36.htm | 4939 | 2018-11-13 17:11:59 |
| R37.htm | 9929 | 2018-11-13 17:11:59 |
| R38.htm | 11541 | 2018-11-13 17:11:59 |
| R39.htm | 25862 | 2018-11-13 17:11:59 |
| R4.htm | 52153 | 2018-11-13 17:11:59 |
| R40.htm | 15642 | 2018-11-13 17:11:59 |
| R41.htm | 33969 | 2018-11-13 17:11:59 |
| R42.htm | 17718 | 2018-11-13 17:11:59 |
| R43.htm | 55776 | 2018-11-13 17:11:59 |
| R44.htm | 42224 | 2018-11-13 17:11:59 |
| R45.htm | 23224 | 2018-11-13 17:11:59 |
| R46.htm | 26342 | 2018-11-13 17:11:59 |
| R47.htm | 13016 | 2018-11-13 17:11:59 |
| R48.htm | 8631 | 2018-11-13 17:11:59 |
| R49.htm | 10489 | 2018-11-13 17:11:59 |
| R5.htm | 16196 | 2018-11-13 17:11:59 |
| R50.htm | 72029 | 2018-11-13 17:11:59 |
| R51.htm | 50315 | 2018-11-13 17:11:59 |
| R52.htm | 27406 | 2018-11-13 17:11:59 |
| R53.htm | 19230 | 2018-11-13 17:11:59 |
| R54.htm | 4417 | 2018-11-13 17:11:59 |
| R55.htm | 32891 | 2018-11-13 17:11:59 |
| R56.htm | 22396 | 2018-11-13 17:11:59 |
| R57.htm | 16669 | 2018-11-13 17:11:59 |
| R58.htm | 25311 | 2018-11-13 17:11:59 |
| R59.htm | 14309 | 2018-11-13 17:11:59 |
| R6.htm | 5312 | 2018-11-13 17:11:59 |
| R60.htm | 26822 | 2018-11-13 17:11:59 |
| R61.htm | 10753 | 2018-11-13 17:11:59 |
| R62.htm | 32281 | 2018-11-13 17:11:59 |
| R63.htm | 22601 | 2018-11-13 17:11:59 |
| R64.htm | 18881 | 2018-11-13 17:11:59 |
| R65.htm | 17291 | 2018-11-13 17:11:59 |
| R66.htm | 22158 | 2018-11-13 17:11:59 |
| R67.htm | 24269 | 2018-11-13 17:11:59 |
| R68.htm | 17299 | 2018-11-13 17:11:59 |
| R69.htm | 4574 | 2018-11-13 17:11:59 |
| R7.htm | 17397 | 2018-11-13 17:11:59 |
| R70.htm | 61699 | 2018-11-13 17:11:59 |
| R71.htm | 27755 | 2018-11-13 17:11:59 |
| R72.htm | 29259 | 2018-11-13 17:11:59 |
| R73.htm | 5785 | 2018-11-13 17:11:59 |
| R74.htm | 16081 | 2018-11-13 17:11:59 |
| R75.htm | 13215 | 2018-11-13 17:11:59 |
| R8.htm | 73719 | 2018-11-13 17:11:59 |
| R9.htm | 30371 | 2018-11-13 17:11:59 |
| report.css | 2767 | 2018-11-13 17:11:59 |
| Show.js | 1085 | 2018-11-13 17:11:59 |