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Stockholders' Equity - Stock Options and Warrants (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Stock Options, Shares |  |
Options, Outstanding, Beginning of Period (in shares) | 1,322,501 |
Options, Granted (in shares) | 132,575 |
Options, Exercised (in shares) | 0 |
Options, Forfeited (in shares) | 0 |
Options, Expired (in shares) | (1,163) |
Options, Outstanding, End of Period (in shares) | 1,453,913 | 1,322,501
Options, Vested and expected to vest (in shares) | 1,443,689 |
Options, Vested (in shares) | 1,285,911 |
Stock Options, Weighted Average Exercise Price |  |
Options, Outstanding. Beginning of Period (in dollars per share) | $ 10.81 |
Options, Granted (in dollars per share) | 3.07 |
Options, Exercised (in dollars per share) | 0 |
Options, Forfeited (in dollars per share) | 0 |
Options, Expired (in dollars per share) | 1,165.5 |
Options, Outstanding, End of Period (in dollars per share) | 9.18 | $ 10.81
Options, Vested and expected to vest (in dollars per share) | 9.22 |
Options, Vested (in dollars per share) | $ 9.92 |
Stock Options, Weighted Average Contractual Term and Intrinsic Value |  |
Options, Outstanding, Weighted Average Remaining Contractual Term | 6 years 2 months 4 days | 6 years 21 days
Options, Vested and expected to vest, Weighted Average Remaining Contractual Term | 6 years 1 month 28 days |
Options, Vested, Weighted Average Remaining Contractual Term | 5 years 9 months |
Options, Outstanding, Aggregate Intrinsic Value | $ 232,100 | $ 164,100
Options, Vested and expected to vest, Aggregate Intrinsic Value | 231,500 |
Options, Vested, Aggregate Intrinsic Value | $ 215,900 |
Warrants, Shares |  |
Warrants, Outstanding, Beginning of Period (in shares) | 1,421,744 |
Warrants, Granted (in shares) | 0 |
Warrants, Exercised (in shares) | 0 |
Warrants, Forfeited (in shares) | 0 |
Warrants, Expired (in shares) | 0 |
Warrants, Outstanding, End of Period (in shares) | 1,421,744 | 1,421,744
Warrants, Vested and expected to vest (in shares) | 1,421,744 |
Warrants, Vested (in shares) | 1,421,744 |
Warrants, Weighted Average Exercise Price |  |
Warrants Outstanding, Beginning of Period (in dollars per share) | $ 42.51 |
Warrants, Granted (in dollars per share) | 0 |
Warrants, Exercised (in dollars per share) | 0 |
Warrants, Forfeited (in dollars per share) | 0 |
Warrants, Expired (in dollars per share) | 0 |
Warrants Outstanding, End of Period (in dollars per share) | 42.51 | $ 42.51
Warrants, Weighted Average Exercise Price, Vested or expected to vest in the future (in dollars per share) | 42.51 |
Warrants, Vested, Weighted Average Exercise Price (in dollars per share) | $ 42.51 |
Warrants, Weighted Average Contractual Term and Intrinsic Value |  |
Warrants, Outstanding, Weighted Average Remaining Contractual Term | 2 years | 2 years 5 months 1 day
Warrants, Vested and expected to vest, Weighted Average Remaining Contractual Term | 2 years |
Warrants, Vested, Weighted Average Remaining Contractual Term | 2 years |
Warrants Outstanding, Aggregate Intrinsic Value | $ 0 | $ 0
Warrants, Vested and expected to vest, Aggregate Intrinsic Value | 0 |
Warrants, Vested, Aggregate Intrinsic Value | $ 0 |

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