Document Format Files
Data Files
| Seq | Description | Document | Type | Size |
|---|---|---|---|---|
| 40 | EX-101.SCH | natl-20260521.xsd | EX-101.SCH | 3183 |
| 41 | EX-101.LAB | natl-20260521_lab.xml | EX-101.LAB | 3683 |
| 42 | EX-101.PRE | natl-20260521_pre.xml | EX-101.PRE | 3925 |
| 57 | EXTRACTED XBRL INSTANCE DOCUMENT | natl-20260521xdef14a_htm.xml | XML | 259832 |
EIN.: 923588560 | State of Incorp.: MD | Fiscal Year End: 1231
Type: DEF 14A | Act: 34 | File No.: 001-41728 | Film No.: 26836737
SIC: 3578 Calculating & Accounting Machines (No Electronic Computers)
(CF Office: 06 Technology)