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Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Class A | Class B | Common Stock Class A | Common Stock Class B | Additional Paid-in Capital | Accumulated Deficit
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2022 | $ 44,112 |  |  | $ 49 | $ 385 | $ 354,999 | $ (311,321)
Beginning Balance (in shares) at Dec. 31, 2022 |  |  |  | 4,661 | 38,497 |  |
Issuance of common stock upon exercise of options, issuance and vesting of restricted stock and under employee stock purchase plan, net | 12 |  |  |  | $ 3 | 9 |
Issuance of common stock upon exercise of options, issuance and vesting of restricted stock and under employee stock purchase plan, net (in shares) |  |  |  |  | 282 |  |
Retirements of treasury stock | (1) |  |  |  | $ (1) |  |
Retirements of treasury stock (in shares) |  |  |  |  | (105) |  |
Stock-based compensation from options and restricted stock, net of forfeitures | 799 |  |  |  |  | 799 |
Net loss | (4,476) |  |  |  |  |  | (4,476)
Ending Balance at Mar. 31, 2023 | 40,446 |  |  | $ 49 | $ 387 | 355,807 | (315,797)
Ending Balance (in shares) at Mar. 31, 2023 |  |  |  | 4,661 | 38,674 |  |
Issuance of common stock upon exercise of options, issuance and vesting of restricted stock and under employee stock purchase plan, net | 7 |  |  |  |  | 7 |
Issuance of common stock upon exercise of options, issuance and vesting of restricted stock and under employee stock purchase plan, net (in shares) |  |  |  |  | 22 |  |
Stock-based compensation from options and restricted stock, net of forfeitures | 701 |  |  |  |  | 701 |
Net loss | (2,744) |  |  |  |  |  | (2,744)
Ending Balance at Jun. 30, 2023 | 38,410 |  |  | $ 49 | $ 387 | 356,515 | (318,541)
Ending Balance (in shares) at Jun. 30, 2023 |  |  |  | 4,661 | 38,696 |  |
Issuance of common stock upon exercise of options, issuance and vesting of restricted stock and under employee stock purchase plan, net | 5 |  |  |  | $ 1 | 4 |
Issuance of common stock upon exercise of options, issuance and vesting of restricted stock and under employee stock purchase plan, net (in shares) |  |  |  |  | 88 |  |
Retirements of treasury stock | (1) |  |  |  | $ (1) |  |
Retirements of treasury stock (in shares) |  |  |  |  | (129) |  |
Stock-based compensation from options and restricted stock, net of forfeitures | 407 |  |  |  |  | 407 |
Net loss | (1,547) |  |  |  |  |  | (1,547)
Ending Balance at Sep. 30, 2023 | 37,274 |  |  | $ 49 | $ 387 | 356,926 | (320,088)
Ending Balance (in shares) at Sep. 30, 2023 |  |  |  | 4,661 | 38,655 |  |
Beginning Balance at Dec. 31, 2023 | 35,870 |  |  | $ 49 | $ 386 | 356,666 | (321,231)
Beginning Balance (in shares) at Dec. 31, 2023 |  | 4,661 | 38,661 | 4,661 | 38,661 |  |
Stock-based compensation from options and restricted stock, net of forfeitures | 433 |  |  |  |  | 433 |
Issuance of Class B common stock in connection with prior deferred issuance from acquisition |  |  |  |  | $ 3 | (3) |
Issuance of Class B common stock in connection with prior deferred issuance from acquisition (in shares) |  |  |  |  | 356 |  |
Net loss | (1,450) |  |  |  |  |  | (1,450)
Ending Balance at Mar. 31, 2024 | 34,853 |  |  | $ 49 | $ 389 | 357,096 | (322,681)
Ending Balance (in shares) at Mar. 31, 2024 |  |  |  | 4,661 | 39,017 |  |
Stock-based compensation from options and restricted stock, net of forfeitures | 437 |  |  |  |  | 437 |
Issuance of common stock upon vesting of restricted stock, (in shares) |  |  |  |  | 4 |  |
Net loss | (756) |  |  |  |  |  | (756)
Ending Balance at Jun. 30, 2024 | 34,534 |  |  | $ 49 | $ 389 | 357,533 | (323,437)
Ending Balance (in shares) at Jun. 30, 2024 |  |  |  | 4,661 | 39,021 |  |
Stock-based compensation from options and restricted stock, net of forfeitures | 411 |  |  |  |  | 411 |
Class B common stock issuance correction from prior deferred issuance from acquisition | 1 |  |  |  | $ 1 |  |
Net loss | (831) |  |  |  |  |  | (831)
Ending Balance at Sep. 30, 2024 | $ 34,115 |  |  | $ 49 | $ 390 | $ 357,944 | $ (324,268)
Ending Balance (in shares) at Sep. 30, 2024 |  | 4,661 | 39,021 | 4,661 | 39,021 |  |

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