Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000352825-21-000040-index-headers.html | 2021-06-25 09:01:52 | |
| 0000352825-21-000040-index.html | 2021-06-25 09:01:52 | |
| 0000352825-21-000040.txt | 2021-06-25 09:01:52 | |
 0000352825-21-000040-xbrl.zip | 11910 | 2021-06-25 09:01:52 |
| FilingSummary.xml | 1594 | 2021-06-25 09:01:52 |
| Financial_Report.xlsx | 5660 | 2021-06-25 09:01:52 |
| fstr-20210625.htm | 44986 | 2021-06-25 09:01:52 |
| fstr-20210625.xsd | 1902 | 2021-06-25 09:01:52 |
| fstr-20210625_htm.xml | 14951 | 2021-06-25 09:01:52 |
| fstr-20210625_lab.xml | 23832 | 2021-06-25 09:01:52 |
| fstr-20210625_pre.xml | 12508 | 2021-06-25 09:01:52 |
| MetaLinks.json | 16637 | 2021-06-25 09:01:52 |
| R1.htm | 38566 | 2021-06-25 09:01:52 |
| report.css | 2766 | 2021-06-25 09:01:52 |
| Show.js | 1084 | 2021-06-25 09:01:52 |