General form of registration statement for all companies including face-amount certificate companies

SHAREHOLDERS' EQUITY - Stock Options Outstanding and Exercisable (Details)

v3.23.3
SHAREHOLDERS' EQUITY - Stock Options Outstanding and Exercisable (Details) - Stock options - $ / shares
 6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 47,370 49,040 60,212 37,430
Weighted Average Remaining Contractual Life (in years) 2 years 9 months 18 days 2 years 9 months 18 days 3 years 7 months 6 days 4 years
Weighted average exercise price of options outstanding (in dollars per share) $ 131.09 $ 129.60 $ 111.20 $ 105.00
Number Exercisable (in shares) 32,733 34,163    
Weighted average exercise price of options exercisable (in dollars per share) $ 134.36 $ 135.20    
$180.00 Exercise Price Per Share, group one        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 750 750    
Weighted Average Remaining Contractual Life (in years) 4 years 7 months 6 days 5 years    
Weighted average exercise price of options outstanding (in dollars per share) $ 180.00 $ 180.00    
Number Exercisable (in shares) 750 750    
Weighted average exercise price of options exercisable (in dollars per share) $ 180.00 $ 180.00    
$180.00 Exercise Price Per Share, group two        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 3,400 4,200    
Weighted Average Remaining Contractual Life (in years) 3 months 18 days 9 months 18 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 180.00 $ 180.00    
Number Exercisable (in shares) 3,400 4,200    
Weighted average exercise price of options exercisable (in dollars per share) $ 180.00 $ 180.00    
$156.00 Exercise Price Per Share        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 5,740 7,290    
Weighted Average Remaining Contractual Life (in years) 6 months 1 year    
Weighted average exercise price of options outstanding (in dollars per share) $ 156.00 $ 156.00    
Number Exercisable (in shares) 5,740 7,290    
Weighted average exercise price of options exercisable (in dollars per share) $ 156.00 $ 156.00    
$128.00 Exercise Price Per Share        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 3,025 3,695    
Weighted Average Remaining Contractual Life (in years) 1 year 3 months 18 days 1 year 9 months 18 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 128.00 $ 128.00    
Number Exercisable (in shares) 3,025 3,695    
Weighted average exercise price of options exercisable (in dollars per share) $ 128.00 $ 128.00    
$97.00 Exercise Price Per Share        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 3,250 4,150    
Weighted Average Remaining Contractual Life (in years) 2 years 4 months 24 days 2 years 10 months 24 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 97.00 $ 97.00    
Number Exercisable (in shares) 2,383 3,043    
Weighted average exercise price of options exercisable (in dollars per share) $ 97.00 $ 97.00    
$106.00 Exercise Price Per Share        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 11,205 12,655    
Weighted Average Remaining Contractual Life (in years) 2 years 7 months 6 days 3 years 1 month 6 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 106.00 $ 106.00    
Number Exercisable (in shares) 8,550 7,520    
Weighted average exercise price of options exercisable (in dollars per share) $ 106.00 $ 106.00    
$112.00 Exercise Price Per Share        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 1,500 1,500    
Weighted Average Remaining Contractual Life (in years) 2 years 9 months 18 days 3 years 3 months 18 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 112.00 $ 112.00    
Number Exercisable (in shares) 1,100 900    
Weighted average exercise price of options exercisable (in dollars per share) $ 112.00 $ 112.00    
$153.00 Exercise Price Per Share        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 7,000 8,300    
Weighted Average Remaining Contractual Life (in years) 3 years 3 months 18 days 3 years 9 months 18 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 153.00 $ 153.00    
Number Exercisable (in shares) 5,085 4,598    
Weighted average exercise price of options exercisable (in dollars per share) $ 153.00 $ 153.00    
Range Nine [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options Outstanding (in shares) 1,500 6,500    
Weighted Average Remaining Contractual Life (in years) 3 years 8 months 12 days 4 years 2 months 12 days    
Weighted average exercise price of options outstanding (in dollars per share) $ 103.20 $ 103.20    
Number Exercisable (in shares) 700 2,167    
Weighted average exercise price of options exercisable (in dollars per share) $ 103.20 $ 103.20