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Common Stock and Earnings Per Share (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 11, 2013
Common Stock and Earnings Per Share [Abstract]      
Net income $ 3,859 $ 3,705  
Shares Used in Computing Basic and Diluted Earnings per Share [Abstract]      
Weighted average common shares, basic (in shares) 13,105,674 13,055,871  
Effect of dilutive securities [Abstract]      
Employee stock-based compensation (in shares) 2,756 2,690  
Weighted average common shares, diluted (in shares) 13,108,430 13,058,561  
Stock Repurchase Program [Abstract]      
Number of shares authorized to be repurchased under the stock repurchase program (in shares)     1,200,000
Number of shares repurchased under the stock repurchase program (in shares) 0 0  
Number of remaining shares authorized to be repurchased under the stock repurchase program (in shares) 618,004