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v3.22.1

CONDENSED CONSOLIDATED STATEMENTS OF LOSS - USD ($) shares in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Operating expenses: |  |
Research and development expenses | $ 6,991,000 | $ 3,852,000
Selling, general and administrative expenses | 21,635,000 | 11,012,000
Restructuring income | 0 | (53,000)
Total operating expense | 28,626,000 | 14,811,000
Operating loss | (28,626,000) | (14,811,000)
Investment and other (expense) income, net | (137,000) | 610,000
Interest expense | (2,017,000) | (1,929,000)
Gain from release of certain liabilities | 33,000 | 78,000
Loss before income taxes | (30,747,000) | (16,052,000)
Income tax benefit | (4,323,000) | (2,607,000)
Net loss | $ (26,424,000) | $ (13,445,000)
Net loss per share - basic (in dollars per share) | $ (0.45) | $ (0.23)
Net loss per share - diluted (in dollars per share) | $ (0.45) | $ (0.23)
Weighted average number of shares outstanding - basic (in shares) | 58,824 | 58,443
Weighted average number of shares outstanding - diluted (in shares) | 58,824 | 58,443

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