Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000352825-21-000057-index-headers.html | 2021-09-27 09:04:40 | |
| 0000352825-21-000057-index.html | 2021-09-27 09:04:40 | |
| 0000352825-21-000057.txt | 2021-09-27 09:04:40 | |
 0000352825-21-000057-xbrl.zip | 16601 | 2021-09-27 09:04:40 |
| ex-991pilingpressrelease92.htm | 16431 | 2021-09-27 09:04:40 |
| FilingSummary.xml | 1642 | 2021-09-27 09:04:40 |
| Financial_Report.xlsx | 5660 | 2021-09-27 09:04:40 |
| fstr-20210924.htm | 44380 | 2021-09-27 09:04:40 |
| fstr-20210924.xsd | 1902 | 2021-09-27 09:04:40 |
| fstr-20210924_htm.xml | 15036 | 2021-09-27 09:04:40 |
| fstr-20210924_lab.xml | 23832 | 2021-09-27 09:04:40 |
| fstr-20210924_pre.xml | 12508 | 2021-09-27 09:04:40 |
 image_0a.jpg | 587126 | 2021-09-27 09:04:40 |
| MetaLinks.json | 16472 | 2021-09-27 09:04:40 |
| R1.htm | 38566 | 2021-09-27 09:04:40 |
| report.css | 2767 | 2021-09-27 09:04:40 |
| Show.js | 1085 | 2021-09-27 09:04:40 |