Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000352825-21-000071-index-headers.html | 2021-12-22 09:31:16 | |
| 0000352825-21-000071-index.html | 2021-12-22 09:31:16 | |
| 0000352825-21-000071.txt | 2021-12-22 09:31:16 | |
 0000352825-21-000071-xbrl.zip | 12325 | 2021-12-22 09:31:16 |
| FilingSummary.xml | 1595 | 2021-12-22 09:31:16 |
| Financial_Report.xlsx | 5657 | 2021-12-22 09:31:16 |
| fstr-20211221.htm | 45606 | 2021-12-22 09:31:16 |
| fstr-20211221.xsd | 1902 | 2021-12-22 09:31:16 |
| fstr-20211221_htm.xml | 14583 | 2021-12-22 09:31:16 |
| fstr-20211221_lab.xml | 23832 | 2021-12-22 09:31:16 |
| fstr-20211221_pre.xml | 12508 | 2021-12-22 09:31:16 |
| MetaLinks.json | 16473 | 2021-12-22 09:31:16 |
| R1.htm | 38566 | 2021-12-22 09:31:16 |
| report.css | 2766 | 2021-12-22 09:31:16 |
| Show.js | 1084 | 2021-12-22 09:31:16 |