XML 86 R72.htm IDEA: XBRL DOCUMENT v3.24.1
EQUITY INCENTIVE PLAN (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, expiration period 10 years  
Awards outstanding (in shares) 0 0
Stock-based compensation $ 1.6 $ 3.8
Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted (in shares) 58,780 55,700
Granted (in dollars per share) $ 12.12 $ 30.20
Forfeited (in shares) (10,103) (3,397)
Forfeited (in dollars per share) $ 24.02 $ 43.60
Weighted average grant date fair value (in dollars per share) $ 11.60  
Risk free interest rate, minimum 3.63%  
Risk free interest rate, maximum 4.05%  
Term 6 years  
Stock options, expected to vest, outstanding (in shares) 213,891  
Stock options, expected to vest, outstanding, aggregate intrinsic value $ 0.0  
Stock options, expected to vest remaining contractual term 7 years 6 months  
Unrecognized compensation expense related to unvested stock awards $ 2.1  
Unvested stock options, unrecognized compensation expense weighted average recognition period (in years) 1 year 10 months 24 days  
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options, expected to vest, outstanding (in shares) 2,492  
Restricted stock granted 2,492 0
Awards outstanding (in shares) 0  
Award weight average grant date fair value $ 5.90  
Minimum [Member] | Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Volatility rate 142.00%  
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options, unvested options, vesting period 4 years  
Maximum [Member] | Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options, unvested options, vesting period 4 years  
Volatility rate 162.00%  
Equity Incentive Plan 2017 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized 249,693  
Shares available for grant 14,392  
Percentage of annual increase in number of shares authorized for grant 5.00%  
Number of additional shares authorized 57,051  
Equity Incentive Plan 2017 [Member] | Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation arrangement by share-based payment award, expiration period 10 years  
Plan expiration date Jun. 05, 2027