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Summary Of Significant Accounting Policies (Narrative) (Details). - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Summary Of Significant Accounting Policies [Line Items] |  |  |
Foreign Currency Transaction Gain (Loss), before Tax | $ (300) | $ (200) | $ (800)
Cash | 7,100 | 13,100 |
Cash and cash equivalents | 7,062 | 9,660 |
Goodwill | 22,446 | 35,717 | 70,608
Goodwill impairment | $ 13,271 | $ 34,891 | $ 0
Incremental shares excluded from the calculation of incremental shares attributable to stock options and restricted stock | 2,497,008 | 2,925,091 | 2,760,983
Increase (decrease) in cash, cash equivalents and restricted cash | $ (6,393) | $ (5,777) | $ (11,289)
Cash and cash equivalents | 7,062 | 13,051 |
Cash and cash equivalents | 0 | 3,391 |
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Continuing Operations | 3,600 |  |
Restricted Cash for ABL Facility |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Cash and cash equivalents |  | 3,400 |
Aluminum Extrusions |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Goodwill | 0 | 13,271 | $ 13,271
Goodwill impairment | (13,271) | 0 |
Surface protection films |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Goodwill | 22,400 |  |
Goodwill impairment |  | 34,900 |
Goodwill, Impairment Loss, Net of Tax |  | 27,000 |
Aluminum Extrusions |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Goodwill impairment | 13,300 |  |
Goodwill, Impairment Loss, Net of Tax | $ 10,400 |  |
Minimum | Buildings And Land Improvements |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Average useful life | 5 years |  |
Minimum | Machinery and Equipment |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Average useful life | 2 years |  |
Maximum | Buildings And Land Improvements |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Average useful life | 40 years |  |
Maximum | Machinery and Equipment |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Average useful life | 20 years |  |
Foreign Country |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Cash and cash equivalents | $ 1,600 | $ 800 |

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