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Shareholders' Equity - Narrative (Details)
1 Months Ended 12 Months Ended
Jun. 30, 2019
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
vote
shares
Dec. 31, 2020
USD ($)
shares
Dec. 05, 2018
shares
Equity Class Of Treasury Stock [Line Items]        
Common stock, shares issued (in shares)   9,707,817 9,681,728  
Common stock, shares outstanding (in shares)   9,707,817 9,681,728  
Common stock voting rights, number of votes per share | vote   1    
Restricted Stock Units (RSUs)        
Equity Class Of Treasury Stock [Line Items]        
Shares repurchased (in shares)   3,886 9,188  
Shares repurchased | $   $ 12,000 $ 28,000  
Stock Repurchase Program, December 2018        
Equity Class Of Treasury Stock [Line Items]        
Shares repurchased (in shares)   0 2,398  
Shares repurchased | $     $ 8,000  
Stock Repurchase Program, December 2018 | Maximum        
Equity Class Of Treasury Stock [Line Items]        
Number of shares authorized for repurchase (in shares)       1,000,000
Common stocks        
Equity Class Of Treasury Stock [Line Items]        
Common stock, shares issued (in shares)   9,707,817 9,681,728  
Common stock, shares outstanding (in shares)   9,707,817 9,681,728  
Private placement | Common stocks        
Equity Class Of Treasury Stock [Line Items]        
Common equity issued | $ $ 5,000,000.0      
Common equity issued (in shares) 1,176,471      
Offering price per share (in dollars per share) | $ / shares $ 4.25