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STOCKHOLDERS’ EQUITY (Tables)
3 Months Ended
Mar. 31, 2025
Equity [Abstract]  
Schedule of Stockholders' Equity Note, Warrants or Rights
As of March 31, 2025 and December 31, 2024, we had the following outstanding warrants:

As of
March 31, 2025
As of
December 31, 2024
Number of Underlying SharesExercise PriceExpiration
June 2022 Warrants384,615384,615$9.10December 16, 2026
December 2021 Warrants182,630182,630$24.64June 7, 2027
January 2020 Investor Warrants— 26,819$23.59January 13, 2025
January 2020 Placement Agent Warrants— 5,954$34.96January 13, 2025
384,798600,018
Schedule of Stock-based Compensation Expense
The following table summarizes stock-based compensation expense and the impact it had on operations for the periods presented (in thousands):
Three months ended
March 31,
20252024
Cost of sales$— $— 
Product development— — 
Selling, general, and administrative(4)
Total stock-based compensation$(4)$
Schedule of Option Activity A summary of option activity under all plans for the three months ended March 31, 2025 was as follows:
Number of
Options
Weighted
Average
Exercise
Price Per
Share
Weighted
Average
Remaining
Contractual
Life (in years)
Balance at December 31, 202430,566 $5.58 
Granted— — 
Canceled/forfeited(28,300)5.15 
Expired— — 
Balance at March 31, 20252,266 $10.95 3.9
Vested and expected to vest at March 31, 20252,266 $10.95 3.9
Exercisable at March 31, 20251,558 $14.71 3.9