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Stock Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of shares authorized (in shares) | 3,000,000 |
Restricted Stock |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Applicable vesting period | 3 years |
Unrecognized compensation expense | $ 1,325 | $ 1,292
Expected weighted-average term | 1 year 10 months 24 days |
Shares surrendered (in shares) | 3,874 | 0
Restricted Stock | Selling, general and administrative expense |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation costs | $ 289 | $ 292
Stock Appreciation Rights (SARs) |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Applicable vesting period | 3 years |
Unrecognized compensation expense | $ 149 | 292
Expected weighted-average term | 5 years |
Grant price (in USD per share) | $ 10 |
Average remaining contractual term | 3 years 1 month 6 days |
Aggregate intrinsic value | $ 313 |
Weighted-average period costs are expected to be recognized | 1 year 1 month 6 days |
Stock Appreciation Rights (SARs) | Selling, general and administrative expense |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Compensation costs | $ 30 | $ 24

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