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CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Revenue, net: |  |  |  |  |
Revenue, net |  | $ 36,974 | $ 40,799 | $ 152,034 | $ 129,556
Operating costs and expenses: |  |  |  |  |
Selling, general, and administrative expense |  | 17,942 | 18,423 | 68,264 | 51,566
Depreciation and amortization expense |  | 5,365 | 5,015 | 20,352 | 19,709
Total operating costs and expenses |  | 31,844 | 32,878 | 124,135 | 104,279
Income (loss) from operations |  | 5,130 | 7,921 | 27,899 | 25,277
Other expense, net: |  |  |  |  |
Interest expense, net |  | (182) | (573) | (1,103) | (477)
Gain (loss) on sale of property |  | 0 | 69 | 101 | 127
Loss on asset disposal |  | (9) | 0 | (489) | 0
Unrealized gain (loss) on equity securities |  | 249 | (33) | (255) | 234
Other expense, net |  |  |  | (6,359) | (384)
Other income (expense), net |  | (1,125) | 40 |  |
Total other expense, net |  | (1,067) | (497) | (8,105) | (500)
Income before income tax expense |  | 4,063 | 7,424 | 19,794 | 24,777
Income tax expense |  | (937) | (1,723) | (5,046) | (3,698)
Net income |  | 3,126 | 5,701 | 14,748 | 21,080
Accumulated dividends on redeemable convertible preferred stock |  | 0 | 314 | 314 | 1,189
Net income available to common shareholders |  | $ 3,126 | $ 5,387 | $ 14,434 | $ 19,891
Basic earnings per share |  | $ 0.11 | $ 0.45 | $ 0.67 | $ 1.66
Diluted earnings per share |  | $ 0.11 | $ 0.29 | $ 0.59 | $ 1.07
Basic weighted-average common shares outstanding | [1] | 29,768,568 | 11,951,137 | 21,421,610 | 11,951,137
Diluted weighted-average common shares outstanding | [1] | 29,768,568 | 19,677,507 | 25,131,024 | 19,677,507
Comprehensive income: |  |  |  |  |
Net income |  | $ 3,126 | $ 5,701 | $ 14,748 | $ 21,080
Foreign currency translation adjustment, net of tax |  | (511) | 0 | (114) | 173
Net comprehensive income |  | 2,615 | 5,701 | 14,634 | 21,253
Tool Rental |  |  |  |  |
Revenue, net: |  |  |  |  |
Revenue, net |  | 29,966 | 32,276 | 119,239 | 99,018
Operating costs and expenses: |  |  |  |  |
Operating costs and expenses |  | 7,001 | 8,137 | 30,960 | 27,581
Product Sale |  |  |  |  |
Revenue, net: |  |  |  |  |
Revenue, net |  | 7,008 | 8,523 | 32,795 | 30,538
Operating costs and expenses: |  |  |  |  |
Operating costs and expenses |  | $ 1,536 | $ 1,303 | $ 4,559 | $ 5,423
[1] | Shares of legacy redeemable convertible preferred stock and legacy common stock have been retroactively restated to give effect to the Merger.

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