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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands | Total | Class A Common Stock | Class B Common Stock | Common Stock Class A Common Stock | Common Stock Class B Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Loss | Accumulated Deficit
--- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2021 |  |  |  | 31,841,061 | 108,870,126 |  |  |
Beginning balance at Dec. 31, 2021 | $ 225,542 |  |  | $ 0 | $ 1 | $ 264,871 | $ (230) | $ (39,100)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Conversion of Class B Common Stock to Class A Common Stock (in shares) |  |  |  | 10,842,862 | 10,842,862 |  |  |
Issuance of common stock upon exercise of stock options (in shares) |  |  |  | 197,828 |  |  |  |
Issuance of common stock upon exercise of stock options | 924 |  |  |  |  | 924 |  |
Issuance of common stock in connection with Employee Stock Purchase Plan (in shares) |  |  |  | 39,516 |  |  |  |
Issuance of common stock upon vesting of restricted stock units (in shares) |  |  |  | 14,625 |  |  |  |
Stock-based compensation expense | 932 |  |  |  |  | 932 |  |
Cumulative translation adjustment | (264) |  |  |  |  |  | (264) |
Net income (loss) | (2,571) |  |  |  |  |  |  | (2,571)
Ending balance (in shares) at Mar. 31, 2022 |  |  |  | 42,935,892 | 98,027,264 |  |  |
Ending balance at Mar. 31, 2022 | 224,563 |  |  | $ 0 | $ 1 | 266,727 | (494) | (41,671)
Beginning balance (in shares) at Dec. 31, 2021 |  |  |  | 31,841,061 | 108,870,126 |  |  |
Beginning balance at Dec. 31, 2021 | 225,542 |  |  | $ 0 | $ 1 | 264,871 | (230) | (39,100)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Cumulative translation adjustment | (1,230) |  |  |  |  |  |  |
Unrealized gain (loss) on investments | 0 |  |  |  |  |  |  |
Net income (loss) | (19,947) |  |  |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2022 |  |  |  | 43,615,053 | 97,864,674 |  |  |
Ending balance at Sep. 30, 2022 | 211,277 |  |  | $ 0 | $ 1 | 271,783 | (1,460) | (59,047)
Beginning balance (in shares) at Mar. 31, 2022 |  |  |  | 42,935,892 | 98,027,264 |  |  |
Beginning balance at Mar. 31, 2022 | 224,563 |  |  | $ 0 | $ 1 | 266,727 | (494) | (41,671)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Conversion of Class B Common Stock to Class A Common Stock (in shares) |  |  |  | 156,600 | 156,600 |  |  |
Issuance of common stock upon exercise of stock options (in shares) |  |  |  | 143,667 |  |  |  |
Issuance of common stock upon exercise of stock options | 270 |  |  |  |  | 270 |  |
Issuance of common stock upon vesting of restricted stock units (in shares) |  |  |  | 25,024 |  |  |  |
Stock-based compensation expense | 2,204 |  |  |  |  | 2,204 |  |
Cumulative translation adjustment | (857) |  |  |  |  |  | (857) |
Net income (loss) | (8,284) |  |  |  |  |  |  | (8,284)
Ending balance (in shares) at Jun. 30, 2022 |  |  |  | 43,261,183 | 97,870,664 |  |  |
Ending balance at Jun. 30, 2022 | 217,896 |  |  | $ 0 | $ 1 | 269,201 | (1,351) | (49,955)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Conversion of Class B Common Stock to Class A Common Stock (in shares) |  |  |  | 57,749 | 57,749 |  |  |
Issuance of common stock upon exercise of stock options (in shares) |  |  |  | 264,455 |  |  |  |
Issuance of common stock upon exercise of stock options | 345 |  |  |  |  | 345 |  |
Issuance of common stock in connection with Employee Stock Purchase Plan (in shares) |  |  |  | 25,240 |  |  |  |
Issuance of common stock in connection with Employee Stock Purchase Plan | 257 |  |  |  |  |  |  |
Issuance of common stock upon vesting of restricted stock units (in shares) |  |  |  | 6,426 | 51,759 |  |  |
Stock-based compensation expense | 1,980 |  |  |  |  | 1,980 |  |
Cumulative translation adjustment | (109) |  |  |  |  |  | (109) |
Unrealized gain (loss) on investments | 0 |  |  |  |  |  |  |
Net income (loss) | (9,092) |  |  |  |  |  |  | (9,092)
Ending balance (in shares) at Sep. 30, 2022 |  |  |  | 43,615,053 | 97,864,674 |  |  |
Ending balance at Sep. 30, 2022 | 211,277 |  |  | $ 0 | $ 1 | 271,783 | (1,460) | (59,047)
Beginning balance (in shares) at Dec. 31, 2022 |  | 43,743,000 | 97,844,000 | 43,743,174 | 97,843,570 |  |  |
Beginning balance at Dec. 31, 2022 | 199,904 |  |  | $ 0 | $ 1 | 274,057 | (1,206) | (72,948)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Conversion of Class B Common Stock to Class A Common Stock (in shares) |  |  |  | 74,239,844 | 74,239,844 |  |  |
Conversion of Class B Common Stock to Class A Common Stock | 0 |  |  | $ 1 | $ (1) |  |  |
Issuance of common stock upon exercise of stock options (in shares) |  |  |  | 88,957 |  |  |  |
Issuance of common stock upon exercise of stock options | 67 |  |  |  |  | 67 |  |
Issuance of common stock in connection with Employee Stock Purchase Plan (in shares) |  |  |  | 38,879 |  |  |  |
Issuance of common stock in connection with Employee Stock Purchase Plan | 264 |  |  |  |  | 264 |  |
Issuance of common stock upon vesting of restricted stock units (in shares) |  |  |  | 71,557 |  |  |  |
Stock-based compensation expense | 2,796 |  |  |  |  | 2,796 |  |
Cumulative translation adjustment | 365 |  |  |  |  |  | 365 |
Unrealized gain (loss) on investments | (83) |  |  |  |  |  | (83) |
Net income (loss) | (9,860) |  |  |  |  |  |  | (9,860)
Ending balance (in shares) at Mar. 31, 2023 |  |  |  | 118,182,411 | 23,603,726 |  |  |
Ending balance at Mar. 31, 2023 | 193,453 |  |  | $ 1 | $ 0 | 277,184 | (924) | (82,808)
Beginning balance (in shares) at Dec. 31, 2022 |  | 43,743,000 | 97,844,000 | 43,743,174 | 97,843,570 |  |  |
Beginning balance at Dec. 31, 2022 | $ 199,904 |  |  | $ 0 | $ 1 | 274,057 | (1,206) | (72,948)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of common stock upon exercise of stock options (in shares) | 997,964 |  |  |  |  |  |  |
Cumulative translation adjustment | $ 193 |  |  |  |  |  |  |
Unrealized gain (loss) on investments | (1,179) |  |  |  |  |  |  |
Net income (loss) | $ (5,924) |  |  |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2023 | 23,482,000 | 119,611,000 |  | 119,610,733 | 23,482,057 |  |  |
Ending balance at Sep. 30, 2023 | $ 204,769 |  |  | $ 1 | $ 0 | 285,831 | (2,191) | (78,872)
Beginning balance (in shares) at Mar. 31, 2023 |  |  |  | 118,182,411 | 23,603,726 |  |  |
Beginning balance at Mar. 31, 2023 | 193,453 |  |  | $ 1 | $ 0 | 277,184 | (924) | (82,808)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of common stock upon exercise of stock options (in shares) |  |  |  | 583,137 |  |  |  |
Issuance of common stock upon exercise of stock options | 235 |  |  |  |  | 235 |  |
Issuance of common stock upon vesting of restricted stock units (in shares) |  |  |  | 264,920 |  |  |  |
Stock-based compensation expense | 3,765 |  |  |  |  | 3,765 |  |
Cumulative translation adjustment | (120) |  |  |  |  |  | (120) |
Unrealized gain (loss) on investments | (1,160) |  |  |  |  |  | (1,160) |
Net income (loss) | (279) |  |  |  |  |  |  | (279)
Ending balance (in shares) at Jun. 30, 2023 |  |  |  | 119,030,468 | 23,603,726 |  |  |
Ending balance at Jun. 30, 2023 | 195,894 |  |  | $ 1 | $ 0 | 281,184 | (2,204) | (83,087)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Conversion of Class B Common Stock to Class A Common Stock (in shares) |  |  |  | 175,000 | 175,000 |  |  |
Issuance of common stock upon exercise of stock options (in shares) |  |  |  | 325,870 |  |  |  |
Issuance of common stock upon exercise of stock options | 444 |  |  |  |  | 444 |  |
Issuance of common stock upon vesting of restricted stock units (in shares) |  |  |  | 79,395 | 53,331 |  |  |
Stock-based compensation expense | 4,203 |  |  |  |  | 4,203 |  |
Cumulative translation adjustment | (51) |  |  |  |  |  | (51) |
Unrealized gain (loss) on investments | 64 |  |  |  |  |  | 64 |
Net income (loss) | $ 4,215 |  |  |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2023 | 23,482,000 | 119,611,000 |  | 119,610,733 | 23,482,057 |  |  |
Ending balance at Sep. 30, 2023 | $ 204,769 |  |  | $ 1 | $ 0 | $ 285,831 | $ (2,191) | $ (78,872)

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