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Equity Incentive Plan (Tables)
 12 Months Ended
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
The following table summarizes option activity during the year ended December 31, 2024:
 Shares
Subject to Options		Weighted-
Average
Exercise
Price		Weighted-
Average
Remaining
Contractual
Term (years)		Aggregate
Intrinsic
Value
(in thousands)
Outstanding — January 1, 2024395,241 $6.34 
Granted371,465 $2.16 
Exercised— $— 
Forfeited(323,536)$3.21 
Outstanding — December 31, 2024443,170 $5.11 4.3$— 
Vested and expected to vest — December 31, 2024443,170 $5.11 4.3$— 
Exercisable — December 31, 2024283,035 $6.16 3.9$— 
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions The assumptions used in the Black-Scholes model were as follows:
Year Ended December 31,
20242023
Expected volatility
124.3-126.1%
81.8-84.0%
Expected term (in years)3.50.5
Risk-free interest rate
4.1-4.6%
5.3-5.5%
Dividend yield——
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
The following table summarizes RSU activity during the year ended December 31, 2024:
 Number of
Shares		Weighted Average
Grant Date Fair Value
Outstanding — January 1, 202458,929 $9.51 
Granted1,757,250 $1.72 
Vested and released(1,055,345)$1.97 
Forfeited— $— 
Outstanding — December 31, 2024760,834 $1.98 
Vested and unreleased — December 31, 2024105,469 $1.87 
Schedule of Share-based Compensation, Restricted Stock Awards [Table Text Block]
The following table summarizes RSA activity during the year ended December 31, 2024:
 Number of
Shares		Weighted Average
Grant Date Fair Value
Outstanding — January 1, 2024— $— 
Granted 199,597 $1.28 
Vested(199,597)$1.28 
Outstanding — December 31, 2024— $— 
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
The Company recorded the following compensation expense related to its share-based compensation awards (in thousands):
Year Ended December 31,
20242023
Sales and marketing$— $103 
General and administrative2,838 2,327 
Total share-based compensation expense$2,838 $2,430 
Share-Based Payment Arrangement, Nonvested Award, Cost
Total unrecognized estimated compensation cost by type of award and the weighted-average remaining requisite service period over which such expense is expected to be recognized (in thousands, unless otherwise noted):
December 31, 2024
Unrecognized ExpenseRemaining Weighted-Average Recognition Period (years)
RSUs$985 0.9
Stock options$75 0.3