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Equity - Equity Incentive Plan Options and Inducement Options (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Share-based compensation      
Outstanding shares, beginning balance 2,759 2,779  
Exercised (in shares)   (20)  
Forfeited/Expired (in shares) (307)    
Outstanding shares, ending balance 2,452 2,759 2,779
Exercisable (in shares) 1,872 2,024  
Outstanding - Weighted Average Exercise Price (in dollars per share) $ 2.07 $ 2.05  
Exercised - Weighted Average Exercise Price (in dollars per share)   0.54  
Forfeited/Expired - Weighted Average Exercise Price (in dollars per share) 2.25    
Outstanding - Weighted Average Exercise Price (in dollars per share) 2.04 2.07 $ 2.05
Exercisable - Weighted Average Exercise Price (in dollars per share) $ 1.7 $ 1.71  
Outstanding - Weighted Average Remaining Contractual Life (in years) 4 years 11 months 1 day 5 years 4 months 17 days 6 years 5 months 4 days
Exercisable - Weighted Average Remaining Contractual Life (in years) 4 years 6 months 18 days 4 years 10 months 13 days  
Aggregate Intrinsic Value, Outstanding beginning of year $ 180    
Aggregate Intrinsic Value, Exercised   $ 20  
Aggregate Intrinsic Value, Forfeited/Expired 18    
Aggregate Intrinsic Value, Outstanding end of period 496 180  
Aggregate Intrinsic Value, Exercisable end of period 485 171  
Total unrecognized compensation 286    
Equity Incentive Plan      
Share-based compensation      
Compensation expense $ 113 $ 174  
Contractual life 10 years    
Non-Qualified Stock Option      
Share-based compensation      
Outstanding shares, beginning balance 491 341  
Granted (in shares)   300  
Exercised (in shares)   (50)  
Forfeited/Expired (in shares)   (100)  
Outstanding shares, ending balance 491 491 341
Exercisable (in shares) 441 391  
Outstanding - Weighted Average Exercise Price (in dollars per share) $ 1.53 $ 1.8  
Granted - Weighted Average Exercise Price (in dollars per share)   1.11  
Exercised - Weighted Average Exercise Price (in dollars per share)   1.31  
Forfeited/Expired - Weighted Average Exercise Price (in dollars per share)   1.31  
Outstanding - Weighted Average Exercise Price (in dollars per share) 1.53 1.53 $ 1.8
Exercisable - Weighted Average Exercise Price (in dollars per share) $ 1.6 $ 1.69  
Outstanding - Weighted Average Remaining Contractual Life (in years) 3 years 14 days 4 years 14 days 6 years 3 days
Exercisable - Weighted Average Remaining Contractual Life (in years) 3 years 3 months 14 days 4 years 7 months 9 days  
Aggregate Intrinsic Value, Outstanding beginning of year $ 30    
Aggregate Intrinsic Value, Outstanding end of period 119 $ 30  
Aggregate Intrinsic Value, Exercisable end of period $ 93 $ 10