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Stock-Based Compensation Plans (Schedule of Restricted Incentive Stock Activity) (Details) - $ / shares
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Number of shares    
Options granted, shares (in shares) 178,950 186,900
Weighted-average exercise price per share    
Options granted, weighted-average exercise price per share (in USD per share) $ 1.29 $ 1.10
Restricted Incentive Stock Options    
Number of shares    
Outstanding, beginning of period (in shares) 170,600 0
Options granted, shares (in shares) 178,950 186,900
Options shares vested (in shares) 0 0
Options shares forfeited (in shares) (29,900) (16,300)
Outstanding, end of period (in shares) 319,650 170,600
Weighted-average exercise price per share    
Outstanding, beginning of period, weighted-average exercise price per share (in USD per share) $ 3.33 $ 0
Options granted, weighted-average exercise price per share (in USD per share) 2.68 3.32
Options shares vested (in USD per share) 0 0
Options shares forfeited (in USD per share) 2.98 3.22
Outstanding, end of period, weighted-average exercise price per share (in USD per share) $ 3.00 $ 3.33
Outstanding, end of period, weighted-average remaining contractual term 6 years 1 month 24 days