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v3.22.2.2

Quarterly Information (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020
Quarterly Financial Information Disclosure [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 162,676 | $ 135,483 | $ 127,854 | $ 106,569 | $ 129,455 | $ 115,813 | $ 118,716 | $ 106,575 | $ 532,582 | $ 470,559 |
Gross profit | 33,440 | 19,059 | 19,083 | 13,436 | 22,472 | 17,167 | 17,153 | 18,271 | 85,018 | 75,063 | $ 94,575
Net income (loss) | $ 8,739 | $ 9,061 | $ (1,217) | $ (2,846) | $ 3,261 | $ (2,041) | $ (225) | $ (364) | $ 13,737 | $ 631 | $ 16,660
Earnings (loss) per share |  |  |  |  |  |  |  |  |  |  |
Basic (in dollars per share) | $ 0.74 | $ 0.77 | $ (0.10) | $ (0.24) | $ 0.28 | $ (0.17) | $ (0.02) | $ (0.03) | $ 1.16 | $ 0.05 | $ 1.43
Diluted (in dollars per share) | $ 0.73 | $ 0.76 | $ (0.10) | $ (0.24) | $ 0.28 | $ (0.17) | $ (0.02) | $ (0.03) | $ 1.15 | $ 0.05 | $ 1.42
Decrease in valuation allowance |  | $ 5,900 |  |  |  |  |  |  | $ (6,700) |  |
Gain on sale of non-core business |  | $ 2,000 |  |  |  |  |  |  | 2,006 | $ 0 | $ 0
Revenue recognized related to settlement of a claim for cost overruns from prior years | $ 2,500 |  |  |  |  |  |  |  | $ 39,100 |  |

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