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Stock Options and Restricted Shares - Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Derivatives, Fair Value [Line Items] |  |
Total stock-based compensation | $ 537 | $ 278
Equity Plans |  |
Derivatives, Fair Value [Line Items] |  |
Direct operating costs | 52 | 38
Selling and administrative expenses | 485 | 240
Total stock-based compensation | $ 537 | $ 278

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- Definition Amount of selling, general and administrative expense classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 + Details
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- Definition Amount of noncash expense for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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