XML 77 R63.htm IDEA: XBRL DOCUMENT v3.21.1
STOCK OPTIONS - Share based compensation (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Weighted-Average Exercise Price      
Proceeds from Stock Options Exercised $ 922,512    
Stock Option Plan 2008      
STOCK OPTIONS      
Shares available for future issuance 0    
Stock Option | Director, officer, and employee      
STOCK OPTIONS      
Shares expired 8,300 661,003 505,216
Number of options      
Outstanding at beginning of period (in shares) 639,300 1,300,303 1,805,519
Exercised (in shares) (431,550)    
Forfeited (in shares) (8,300) (661,003) (505,216)
Outstanding at end of period (in shares) 199,450 639,300 1,300,303
Exercisable (in shares) 199,450 639,300 1,300,303
Weighted-Average Exercise Price      
Outstanding at beginning of period (in dollars per share) $ 2.12 $ 1.57 $ 1.51
Exercise price (in dollars per share) (2.14)    
Forfeited (in dollars per share) (2.75) (1.05) (1.36)
Outstanding at end of period (in dollars per share) 2.05 2.12 1.57
Exercisable (in dollars per share) $ 2.05 $ 2.12 $ 1.57
Stock Option | Employees      
STOCK OPTIONS      
Options issued (in shares) 0 0 0
Stock Option | Non Employees      
STOCK OPTIONS      
Options issued (in shares) 0 0 0
Shares expired   57,500  
Number of options      
Outstanding at beginning of period (in shares)   57,500 57,500
Forfeited (in shares)   (57,500)  
Outstanding at end of period (in shares)     57,500
Exercisable (in shares)     57,500
Weighted-Average Exercise Price      
Outstanding at beginning of period (in dollars per share)   $ 0.81 $ 0.81
Forfeited (in dollars per share)   $ (0.81)  
Outstanding at end of period (in dollars per share)     0.81
Exercisable (in dollars per share)     $ 0.81
Stock Option | Stock Option Plan 2008      
Number of options      
Granted (in shares) 3,649,508    
Outstanding at end of period (in shares) 199,450