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v3.24.3

Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Treasury Stock | Additional Paid-in Capital | Retained Earnings
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2022 |  | 23,788,319 |  |  |
Beginning balance at Dec. 31, 2022 | $ 139,979 | $ 24 | $ (47,692) | $ 103,698 | $ 83,949
Beginning balance (in shares) at Dec. 31, 2022 |  |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 483,242 |  |  |
Stock-based compensation | 563 |  |  | 563 |
Issuance of common stock pursuant to Arq Acquisition, net of offering costs (in shares) |  | 3,814,864 |  |  |
Issuance of common stock pursuant to Arq Acquisition, net of offering costs | 12,437 | $ 4 |  | 12,433 |
Issuance of common stock related to private placement transaction, net of offering costs (in shares) |  | 3,842,315 |  |  |
Issuance of common stock related to private placement transaction, net of offering costs | 15,220 | $ 4 |  | 15,216 |
Issuance of warrant | 826 |  |  | 826 |
Repurchase of common shares to satisfy minimum tax withholdings (in shares) |  | (74,104) |  |  |
Repurchase of common shares to satisfy minimum tax withholdings | (146) |  |  | (146) |
Preferred stock dividends declared on redeemable preferred stock | (157) |  |  |  | (157)
Net income (loss) | (7,508) |  |  |  | (7,508)
Ending balance (in shares) at Mar. 31, 2023 |  | 31,854,636 |  |  |
Ending balance at Mar. 31, 2023 | 161,214 | $ 32 | $ (47,692) | 132,590 | 76,284
Ending balance (in shares) at Mar. 31, 2023 |  |  | (4,618,146) |  |
Beginning balance (in shares) at Dec. 31, 2022 |  | 23,788,319 |  |  |
Beginning balance at Dec. 31, 2022 | 139,979 | $ 24 | $ (47,692) | 103,698 | 83,949
Beginning balance (in shares) at Dec. 31, 2022 |  |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | (15,539) |  |  |  |
Ending balance (in shares) at Sep. 30, 2023 |  | 37,799,053 |  |  |
Ending balance at Sep. 30, 2023 | 174,294 | $ 38 | $ (47,692) | 153,695 | 68,253
Ending balance (in shares) at Sep. 30, 2023 |  |  | (4,618,146) |  |
Beginning balance (in shares) at Mar. 31, 2023 |  | 31,854,636 |  |  |
Beginning balance at Mar. 31, 2023 | 161,214 | $ 32 | $ (47,692) | 132,590 | 76,284
Beginning balance (in shares) at Mar. 31, 2023 |  |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | (16,430) |  |  |
Stock-based compensation | 545 |  |  | 545 |
Issuance of common stock upon conversion of preferred stock (in shares) |  | 5,362,926 |  |  |
Issuance of common stock upon conversion of preferred stock | 18,926 | $ 5 |  | 18,921 |
Repurchase of common shares to satisfy minimum tax withholdings (in shares) |  | (6,973) |  |  |
Repurchase of common shares to satisfy minimum tax withholdings | (14) |  |  | (14) |
Net income (loss) | (5,856) |  |  |  | (5,856)
Ending balance (in shares) at Jun. 30, 2023 |  | 37,194,159 |  |  |
Ending balance at Jun. 30, 2023 | 174,815 | $ 37 | $ (47,692) | 152,042 | 70,428
Ending balance (in shares) at Jun. 30, 2023 |  |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 105,244 |  |  |
Stock-based compensation | 702 |  |  | 702 |
Issuance of common stock to related party (in shares) |  | 527,779 |  |  |
Issuance of common stock to related party |  | $ 1 |  | 999 | 1,000
Repurchase of common shares to satisfy minimum tax withholdings (in shares) |  | (28,129) |  |  |
Repurchase of common shares to satisfy minimum tax withholdings | (48) |  |  | (48) |
Net income (loss) | (2,175) |  |  |  |
Ending balance (in shares) at Sep. 30, 2023 |  | 37,799,053 |  |  |
Ending balance at Sep. 30, 2023 | 174,294 | $ 38 | $ (47,692) | 153,695 | 68,253
Ending balance (in shares) at Sep. 30, 2023 |  |  | (4,618,146) |  |
Beginning balance (in shares) at Dec. 31, 2023 |  | 37,791,084 |  |  |
Beginning balance at Dec. 31, 2023 | $ 178,400 | $ 38 | $ (47,692) | 154,511 | 71,543
Beginning balance (in shares) at Dec. 31, 2023 | (4,618,146) |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 81,253 |  |  |
Stock-based compensation | $ 782 |  |  | 782 |
Repurchase of common shares to satisfy minimum tax withholdings (in shares) |  | (104,163) |  |  |
Repurchase of common shares to satisfy minimum tax withholdings | (599) |  |  | (599) |
Exercise of warrant, net (in shares) |  | 324,955 |  |  |
Net income (loss) | (3,419) |  |  |  | (3,419)
Ending balance (in shares) at Mar. 31, 2024 |  | 38,093,129 |  |  |
Ending balance at Mar. 31, 2024 | 175,164 | $ 38 | $ (47,692) | 154,694 | 68,124
Ending balance (in shares) at Mar. 31, 2024 |  |  | (4,618,146) |  |
Beginning balance (in shares) at Dec. 31, 2023 |  | 37,791,084 |  |  |
Beginning balance at Dec. 31, 2023 | $ 178,400 | $ 38 | $ (47,692) | 154,511 | 71,543
Beginning balance (in shares) at Dec. 31, 2023 | (4,618,146) |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | $ (3,770) |  |  |  |
Ending balance (in shares) at Sep. 30, 2024 |  | 46,652,061 |  |  |
Ending balance at Sep. 30, 2024 | $ 218,116 | $ 47 | $ (47,692) | 197,988 | 67,773
Ending balance (in shares) at Sep. 30, 2024 | (4,618,146) |  | (4,618,146) |  |
Beginning balance (in shares) at Mar. 31, 2024 |  | 38,093,129 |  |  |
Beginning balance at Mar. 31, 2024 | $ 175,164 | $ 38 | $ (47,692) | 154,694 | 68,124
Beginning balance (in shares) at Mar. 31, 2024 |  |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | (43,566) |  |  |
Stock-based compensation | 653 |  |  | 653 |
Issuance of common stock pursuant to Arq Acquisition, net of offering costs (in shares) |  | 2,142,858 |  |  |
Issuance of common stock pursuant to Arq Acquisition, net of offering costs | 14,951 | $ 2 |  | 14,949 |
Issuance of common stock to related party (in shares) |  | 422,221 |  |  |
Issuance of common stock to related party | 800 | $ 1 |  | 799 |
Net income (loss) | (1,968) |  |  |  | (1,968)
Ending balance (in shares) at Jun. 30, 2024 |  | 40,614,642 |  |  |
Ending balance at Jun. 30, 2024 | 189,600 | $ 41 | $ (47,692) | 171,095 | 66,156
Ending balance (in shares) at Jun. 30, 2024 |  |  | (4,618,146) |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 580,826 |  |  |
Stock-based compensation | 750 | $ 1 |  | 749 |
Issuance of common stock in public offering, net of offering costs (in shares) |  | 5,485,500 |  |  |
Issuance of common stock in public offering, net of offering costs | 26,659 | $ 5 |  | 26,654 |
Repurchase of common shares to satisfy minimum tax withholdings (in shares) |  | (28,907) |  |  |
Repurchase of common shares to satisfy minimum tax withholdings | (510) |  |  | (510) |
Net income (loss) | 1,617 |  |  |  | 1,617
Ending balance (in shares) at Sep. 30, 2024 |  | 46,652,061 |  |  |
Ending balance at Sep. 30, 2024 | $ 218,116 | $ 47 | $ (47,692) | $ 197,988 | $ 67,773
Ending balance (in shares) at Sep. 30, 2024 | (4,618,146) |  | (4,618,146) |  |

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