Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000865058-12-000010-index-headers.html | 2012-03-26 16:28:40 | |
| 0000865058-12-000010-index.html | 2012-03-26 16:28:40 | |
| 0000865058-12-000010.txt | 2012-03-26 16:28:40 | |
 0000865058-12-000010-xbrl.zip | 123097 | 2012-03-26 16:28:40 |
| FilingSummary.xml | 14348 | 2012-03-26 16:28:40 |
| Financial_Report.xls | 1522473 | 2012-03-26 16:28:40 |
| nsec-12312011x10k.htm | 2837752 | 2012-03-26 16:28:40 |
| nsec-20111231.xml | 1740480 | 2012-03-26 16:28:40 |
| nsec-20111231.xsd | 19185 | 2012-03-26 16:28:40 |
| nsec-20111231_cal.xml | 57951 | 2012-03-26 16:28:40 |
| nsec-20111231_def.xml | 94544 | 2012-03-26 16:28:40 |
| nsec-20111231_lab.xml | 238964 | 2012-03-26 16:28:40 |
| nsec-20111231_pre.xml | 130303 | 2012-03-26 16:28:40 |
| nsec-ex211x12x31x2011.htm | 4797 | 2012-03-26 16:28:40 |
| nsec-ex311x12312011.htm | 8415 | 2012-03-26 16:28:40 |
| nsec-ex312x12312011.htm | 8377 | 2012-03-26 16:28:40 |
| nsec-ex321x12312011.htm | 7527 | 2012-03-26 16:28:40 |
| nsec-ex991x12x31x2011.htm | 9646 | 2012-03-26 16:28:40 |
 nsglogo.jpg | 2297 | 2012-03-26 16:28:40 |
| R1.htm | 37255 | 2012-03-26 16:28:40 |
| R10.htm | 26342 | 2012-03-26 16:28:40 |
| R11.htm | 346701 | 2012-03-26 16:28:40 |
| R12.htm | 224168 | 2012-03-26 16:28:40 |
| R13.htm | 20811 | 2012-03-26 16:28:40 |
| R14.htm | 66942 | 2012-03-26 16:28:40 |
| R15.htm | 29380 | 2012-03-26 16:28:40 |
| R16.htm | 35900 | 2012-03-26 16:28:40 |
| R17.htm | 55399 | 2012-03-26 16:28:40 |
| R18.htm | 15433 | 2012-03-26 16:28:40 |
| R19.htm | 9026 | 2012-03-26 16:28:40 |
| R2.htm | 174388 | 2012-03-26 16:28:40 |
| R20.htm | 31730 | 2012-03-26 16:28:40 |
| R21.htm | 226327 | 2012-03-26 16:28:40 |
| R22.htm | 21910 | 2012-03-26 16:28:40 |
| R23.htm | 8006 | 2012-03-26 16:28:40 |
| R24.htm | 5801 | 2012-03-26 16:28:40 |
| R25.htm | 140338 | 2012-03-26 16:28:40 |
| R26.htm | 92211 | 2012-03-26 16:28:40 |
| R27.htm | 113984 | 2012-03-26 16:28:40 |
| R28.htm | 59386 | 2012-03-26 16:28:40 |
| R29.htm | 16857 | 2012-03-26 16:28:40 |
| R3.htm | 11600 | 2012-03-26 16:28:40 |
| R4.htm | 77141 | 2012-03-26 16:28:40 |
| R5.htm | 47654 | 2012-03-26 16:28:40 |
| R6.htm | 8241 | 2012-03-26 16:28:40 |
| R7.htm | 124663 | 2012-03-26 16:28:40 |
| R8.htm | 67462 | 2012-03-26 16:28:40 |
| R9.htm | 16504 | 2012-03-26 16:28:40 |
| report.css | 2721 | 2012-03-26 16:28:40 |
| Show.js | 6423 | 2012-03-26 16:28:40 |