Annual report pursuant to Section 13 and 15(d)

Accounting for Share-Based Payments - Narrative (Details)

v3.23.1
Accounting for Share-Based Payments - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Nov. 10, 2020
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized (in shares)   800,000  
Options available (in shares)   700,000  
Compensation expense   $ 1,400 $ 800
Total unrecognized compensation cost   1,500  
2023   1,000  
2024   400  
Thereafter   $ 100  
Nonvested award, cost not yet recognized, period for recognition   2 years 14 days  
Issuance of common stock from the treasury (in shares)   86,274 191,673
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   2 years 14 days  
Vesting period   1 year  
Noninterest expense directors fees   $ 102  
Maximum annual retainer percent   100.00%  
Stock issued during period, shares, restricted stock award   17,173  
Stock issued during period, value, restricted stock award   $ 300  
Board of Directors Chairman | Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Issuance of common stock from the treasury (in shares)   65,000  
Stock Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested award, cost not yet recognized, period for recognition   2 years 3 months 21 days  
Vesting period   3 years  
Granted, weighted average grant date fair value (in dollars per share)   $ 18.19  
Stock Awards | Tranche I      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 66.66%    
Stock Awards | Tranche II      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage 33.33%    
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested award, cost not yet recognized, period for recognition   2 years 2 months 12 days  
Target period for vesting   3 years  
Granted, weighted average grant date fair value (in dollars per share)   $ 3.92 $ 0.69
Options, vested in period, fair value     $ 1,100
Inducement 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 7 days  
Options, vested in period, fair value   $ 200  
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%  
Vesting period   3 years  
Restricted Stock Units (RSUs) | Non Employee Director | Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Issuance of common stock from the treasury (in shares)   15,000  
Phantom Share Units (PSUs) | Non Employee Director | Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Issuance of common stock from the treasury (in shares)   50,000  
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      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage   20.00%  
2015 Stock Awards Plan | Stock Awards | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting rights, percentage   33.00%