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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Treasury Stock | Total
--- | --- | --- | --- | --- | --- | ---
Balance at the beginning at Dec. 31, 2021 | $ 303 | $ 35,121 | $ 3,160 | $ (2,192) | $ (6,465) | $ 29,927
Balance at the beginning (in shares) at Dec. 31, 2021 |  |  |  |  | (3,184,000) |
Balance at the beginning (in shares) at Dec. 31, 2021 | 30,347,000 |  |  |  |  |
Net Income (Loss) |  |  | (11,935) |  |  | (11,935)
Stock-based compensation |  | 3,283 |  |  |  | 3,283
Stock option exercises | $ 3 | 329 |  |  |  | 332
Stock option exercises (in shares) | 249,000 |  |  |  |  |
Shares withheld for taxes on restricted shares vesting |  | (53) |  |  |  | (53)
Shares withheld for taxes on restricted shares vesting (in shares) | (7,000) |  |  |  |  |
Redemption of non-controlling interest |  | (2,865) |  |  |  | (2,865)
Pension liability adjustment, net of taxes |  |  |  | 772 |  | 772
Foreign currency translation adjustment |  |  |  | (676) |  | (676)
Change in fair value of derivatives, net of taxes |  |  |  | (12) |  | (12)
Balance at the end at Dec. 31, 2022 | $ 306 | 35,815 | (8,775) | (2,108) | $ (6,465) | $ 18,773
Balance at the end (in shares) at Dec. 31, 2022 |  |  |  |  | (3,184,000) | 3,184,000
Balance at the end (in shares) at Dec. 31, 2022 | 30,589,000 |  |  |  |  |
Net Income (Loss) |  |  | (908) |  |  | $ (908)
Stock-based compensation |  | 4,027 |  |  |  | 4,027
Stock option exercises | $ 14 | 3,310 |  |  |  | 3,324
Stock option exercises (in shares) | 1,351,000 |  |  |  |  |
Shares withheld for exercise net settlement (in shares) | (3,000) |  |  |  |  |
Pension liability adjustment, net of taxes |  |  |  | (326) |  | (326)
Foreign currency translation adjustment |  |  |  | 407 |  | 407
Change in fair value of derivatives, net of taxes |  |  |  | 406 |  | 406
Balance at the end at Dec. 31, 2023 | $ 320 | $ 43,152 | $ (9,683) | $ (1,621) | $ (6,465) | $ 25,703
Balance at the end (in shares) at Dec. 31, 2023 |  |  |  |  | (3,184,000) | 3,184,000
Balance at the end (in shares) at Dec. 31, 2023 | 31,937,000 |  |  |  |  |

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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481549/505-30-45-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant