Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000352825-23-000031-index.html | 2023-03-06 08:33:33 | |
| 0000352825-23-000031.txt | 2023-03-06 08:33:33 | |
 0000352825-23-000031-xbrl.zip | 31707 | 2023-03-06 08:33:33 |
| ex-991q42022.htm | 309521 | 2023-03-06 08:33:33 |
| FilingSummary.xml | 1639 | 2023-03-06 08:33:33 |
| Financial_Report.xlsx | 5682 | 2023-03-06 08:33:33 |
| fstr-20230306.htm | 43154 | 2023-03-06 08:33:33 |
| fstr-20230306.xsd | 1902 | 2023-03-06 08:33:33 |
| fstr-20230306_htm.xml | 14583 | 2023-03-06 08:33:33 |
| fstr-20230306_lab.xml | 23832 | 2023-03-06 08:33:33 |
| fstr-20230306_pre.xml | 12508 | 2023-03-06 08:33:33 |
 image.jpg | 26481 | 2023-03-06 08:33:33 |
| MetaLinks.json | 17004 | 2023-03-06 08:33:33 |
| R1.htm | 38092 | 2023-03-06 08:33:33 |
| report.css | 2767 | 2023-03-06 08:33:33 |
| Show.js | 1085 | 2023-03-06 08:33:33 |