XML 48 R38.htm IDEA: XBRL DOCUMENT v3.23.1
Stockholders' Equity - Stock Options (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Other disclosures      
Compensation expense $ 60,000.00 $ 30,000.00  
Employee      
Other disclosures      
Compensation expense   10,000.00  
Non Management Directors      
Other disclosures      
Compensation expense   20,000.00  
Stock options      
Number of Options      
Outstanding, beginning balance (in shares) 5,614,310    
Granted (in shares) 0    
Canceled (in shares) 0    
Exercised (in shares) 0    
Expired/Forfeited (in shares) (245,530)    
Outstanding, ending balance (in shares) 5,368,780   5,614,310
Exercisable (in shares) 1,671,280    
Weighted Average Exercise Price      
Outstanding, beginning balance (in dollars per share) $ 2.12    
Granted (in dollars per share) 0    
Canceled (in dollars per share) 0    
Exercised (in dollars per share) 0    
Expired/Forfeited (in dollars per share) 3.84    
Outstanding, ending balance (in dollars per share) 2.04   $ 2.12
Exercisable (in dollars per share) $ 2.76    
Other disclosures      
Outstanding Weighted Average Remaining Contractual Life (in Years) 4 years 8 months 8 days   4 years 9 months 3 days
Exercisable Weighted Average Remaining Contractual Life (in Years) 2 years 2 months 19 days    
Aggregate Intrinsic Value, Outstanding $ 0   $ 0
Aggregate Intrinsic Value, Exercisable 0    
Compensation expense 30,000.00 $ 20,000.00  
Unrecognized compensation expense $ 60,000.00    
Weighted average period of recognition 1 year 3 days