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Stock-Based Compensation And Stock Repurchases (Narrative) (Details) - USD ($)
3 Months Ended 12 Months Ended
Dec. 07, 2023
Apr. 30, 2021
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Repurchase value     $ 0    
Share conversion ratio     1    
Number of Stock Options, Granted     0   0
Stock Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation expense     $ 49,000 $ 9,000  
Unrecognized estimated compensation cost related to non-vested stock options granted     $ 147,000    
Recognition period of unrecognized compensation cost     9 months    
value of all options outstanding, vested and expected to vest        
Share price     $ 1.82    
Minimum [Member] | 2020 Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period of stock options and RSU     1 year    
Maximum [Member] | 2020 Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period of stock options and RSU     4 years    
Stock option expiry period     5 years    
Class A [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares repurchased plan, shares     0 0  
Number of Stock Options, Granted         207,657
Class A [Member] | 2020 Stock Incentive Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common Stock authorized for issuance     1,250,000    
Additional shares authorized 971,807   1,468,375    
Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Compensation expense     $ 628,000 $ 434,000  
Unrecognized estimated compensation cost related to non-vested stock options granted     $ 3,000,000.0    
Vesting period of stock options and RSU     1 year 3 months 14 days    
Number of options, Granted     2,233,372   1,059,108
Restricted Stock Units (RSUs) [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     85,139    
Restricted Stock Units (RSUs) [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     52,360    
Restricted Stock Units (RSUs) [Member] | Award Date 11 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     237,719    
Restricted Stock Units (RSUs) [Member] | Award Date 10 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     413,536    
Restricted Stock Units (RSUs) [Member] | Award Date 12 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     20,427    
Restricted Stock Units (RSUs) [Member] | Award Date 9 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     73,683    
Restricted Stock Units (RSUs) [Member] | Award Date 8 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     428,899    
Executive Officer [Member] | Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period of stock options and RSU     4 years    
Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage   75.00%      
Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage   25.00%      
Directors [Member] | Class A [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of Stock Options, Granted     207,657    
Directors [Member] | Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     339,438   265,755
Directors [Member] | Restricted Stock Units (RSUs) [Member] | Award Date 9 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     73,683    
Management [Member] | Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period of stock options and RSU     4 years    
Percentage of shares vested     25.00%    
Number of options, Granted     1,893,934   793,353
Management [Member] | Restricted Stock Units (RSUs) [Member] | Award Date 11 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     237,719    
Management [Member] | Restricted Stock Units (RSUs) [Member] | Award Date 10 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     413,536    
Management [Member] | Restricted Stock Units (RSUs) [Member] | Award Date 12 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     20,427    
Management [Member] | Restricted Stock Units (RSUs) [Member] | Award Date 8 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options, Granted     428,899    
Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period of stock options and RSU     4 years    
Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] | Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage   50.00%      
Chief Executive Officer [Member] | Restricted Stock Units (RSUs) [Member] | Tranche Two [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage   50.00%