Annual report pursuant to Section 13 and 15(d)

Accounting for Share-Based Payments - Narrative (Details)

v3.24.1
Accounting for Share-Based Payments - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares authorized (in shares) 800,000  
Options available (in shares) 400,000  
Compensation expense $ 1,100,000 $ 1,400,000
Total unrecognized compensation cost 800,000  
2024 600,000  
2025 100,000  
Thereafter $ 100,000  
Nonvested award, cost not yet recognized, period for recognition 1 year 6 months 25 days  
Share-based compensation expense $ 1,023,000 $ 1,355,000
Non Employee Director | Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Nonvested award, cost not yet recognized, period for recognition 1 year 2 months 23 days  
Vesting period 1 year  
Noninterest expense directors fees $ 115,000  
Maximum annual retainer percent 100.00%  
Stock issued during period, shares, restricted stock award 27,432  
Stock issued during period, value, restricted stock award $ 300,000  
Non Employee Director | Restricted Stock | Audit Committee    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Noninterest expense directors fees 10,000  
Non Employee Director | Restricted Stock | Compensation Committee    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Noninterest expense directors fees 7,500  
Non Employee Director | Restricted Stock | Nominating and Corporate Governance Committee    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Noninterest expense directors fees 6,000  
Maximum | Non Employee Director | Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Noninterest expense directors fees 30,000  
Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 0  
Stock Awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Nonvested award, cost not yet recognized, period for recognition 1 year 6 months 14 days  
Vesting period 3 years  
Granted (in dollars per share) $ 9.74  
Performance Shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Nonvested award, cost not yet recognized, period for recognition 1 year 8 months 15 days  
Target period for vesting 3 years  
Granted (in dollars per share) $ 0.64 $ 3.92
Options, vested in period, fair value $ 0 $ 0
Inducement Awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Nonvested award, cost not yet recognized, period for recognition 6 months 3 days  
Options, vested in period, fair value $ 0 $ 200,000
Inducement Awards | Tranche I    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 50.00%  
Inducement Awards | Tranche II    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 50.00%  
2011 Plan | Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term 10 years  
Period after grant date, awards vesting begins 1 year  
2011 Plan | Stock Options | Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 20.00%  
2011 Plan | Stock Options | Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 33.00%  
2015 Stock Awards Plan | Stock Awards    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 100.00%  
Period after grant date, awards vesting begins 1 year  
2015 Stock Awards Plan | Stock Awards | Minimum | Tranche I    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 20.00%  
2015 Stock Awards Plan | Stock Awards | Minimum | Tranche II    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 20.00%  
2015 Stock Awards Plan | Stock Awards | Minimum | Tranche III    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 20.00%  
2015 Stock Awards Plan | Stock Awards | Minimum | Tranche IV    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 20.00%  
2015 Stock Awards Plan | Stock Awards | Minimum | Tranche V    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 20.00%  
2015 Stock Awards Plan | Stock Awards | Maximum | Tranche I    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 33.00%  
2015 Stock Awards Plan | Stock Awards | Maximum | Tranche II    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 33.00%  
2015 Stock Awards Plan | Stock Awards | Maximum | Tranche III    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting rights, percentage 33.00%