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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME |  |  |  |  |  |
Net sales | $ 133,761 |  | $ 141,869 |  | $ 321,994 | $ 411,412
Cost of sales | 97,033 |  | 101,930 |  | 241,501 | 288,934
Gross profit | 36,728 |  | 39,939 |  | 80,493 | 122,478
Selling, general, and administrative expense | 16,428 |  | 17,269 |  | 47,435 | 52,680
Impairment charges |  |  |  |  | 127,872 |
Intangibles amortization | 2,737 |  | 2,737 |  | 8,214 | 8,217
Income (loss) from operations | 17,563 |  | 19,933 |  | (103,028) | 61,581
Interest expense, net | (5,007) |  | (4,271) |  | (15,709) | (12,610)
Debt modification expense | (237) |  |  |  | (3,429) |
Other income (expense), net | 145 |  | (120) |  | (33) | (416)
Income (loss) before taxes | 12,464 |  | 15,542 |  | (122,199) | 48,555
Income tax expense (benefit) | 3,234 |  | 3,113 |  | (17,484) | 10,949
Net income (loss) | $ 9,230 |  | $ 12,429 |  | $ (104,715) | $ 37,606
Weighted average number of common shares outstanding: |  |  |  |  |  |
Basic (in shares) | 22,857,457 |  | 22,795,412 |  | 22,842,777 | 22,773,546
Diluted (in shares) | 22,878,002 |  | 22,832,170 |  | 22,842,777 | 22,808,722
Earnings (loss) per common share: |  |  |  |  |  |
Basic | $ 0.40 |  | $ 0.54 |  | $ (4.60) | $ 1.63
Diluted | 0.39 |  | 0.53 |  | (4.60) | 1.61
Cash dividends declared per share (in dollars per share) | $ 0.28 |  | $ 0.27 |  | 0.84 | 0.82
Cash dividends declared per share (in dollars per share) |  | $ 0.28 |  | $ 0.27 | $ 0.84 | $ 0.82
Comprehensive income (loss) | $ 9,719 |  | $ 11,361 |  | $ (108,038) | $ 33,116

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