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

SHAREHOLDERS' DEFICIT - Stock Options (Details)

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SHAREHOLDERS' DEFICIT - Stock Options (Details) - Stock options - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]        
Options at beginning of period (in shares) 36,425 49,040 60,212  
Options granted (in shares)   10,000 6,500  
Options exercised (in shares)     (40)  
Options expired (in shares) (5,370)      
Options canceled (in shares) (10,000) (22,615)    
Options at end of period (in shares) 21,055 36,425 49,040 60,212
Options vested and exercisable as at end of the period 20,265 26,972    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]        
Exercise Price at beginning of period (in dollars per share) $ 93.55 $ 129.60 $ 111.20  
Options granted (in dollars per share)   0.86 103.20  
Options exercised (in dollars per share)     100.80  
Options expired (in dollars per share) 156.00      
Options canceled (in dollars per share) 0.86 130.82    
Exercise Price at end of period (in dollars per share) 121.65 93.55 $ 129.60 $ 111.20
Exercise Price vested and exercisable (in dollars per share) $ 121.81 $ 113.40    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]        
Weighted Average Remaining Contractual Life (in years) 2 years 3 years 6 months 2 years 9 months 18 days 3 years 7 months 6 days
Weighted Average Remaining life vested and exercisable (in years) 1 year 10 months 24 days 2 years