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Note 19 - Stock-based Compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Expense | $ 1,032 | $ 1,237 | $ 3,219 | $ 3,285
Deferred tax benefit | (216) | (259) | (676) | (690)
Total net expense | 816 | 978 | 2,543 | 2,595
Stock Appreciation Rights (SARs) [Member] |  |  |  |
Expense | 105 | 94 | 310 | 282
Deferred tax benefit | (22) | (20) | (65) | (59)
Total net expense | 83 | 74 | 245 | 223
Restricted Stock [Member] |  |  |  |
Expense | 399 | 346 | 1,204 | 1,028
Deferred tax benefit | (84) | (72) | (253) | (216)
Total net expense | 315 | 274 | 951 | 812
Restricted Stock Units (RSUs) [Member] |  |  |  |
Expense | 126 | 80 | 392 | 252
Deferred tax benefit | (26) | (17) | (82) | (53)
Total net expense | 100 | 63 | 310 | 199
Performance Shares [Member] |  |  |  |
Expense | 402 | 717 | 1,313 | 1,723
Deferred tax benefit | (84) | (150) | (276) | (362)
Total net expense | $ 318 | $ 567 | $ 1,037 | $ 1,361

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