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Common Stock - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Aug. 21, 2014
Class of Stock [Line Items]              
Maximum common stock can be purchased under repurchase program $ 5,000,000   $ 5,000,000        
Common Stock, Shares, Outstanding 24,437,400   24,437,400   24,437,400    
Common Stock              
Class of Stock [Line Items]              
Shares issued during the period 0 0 0 0      
Common stock issued under At the market program     0   0 0  
Maximum common stock can be purchased under repurchase program $ 5,000,000   $ 5,000,000        
Number of shares repurchased under repurchase program 0 0 0 0      
Common Stock | Raymond James & Associates, Inc. and Robert W. Baird & Co              
Class of Stock [Line Items]              
Maximum aggregate offering price of common stock under at-the-market program             $ 50,000,000