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12. SHARE-BASED COMPENSATION (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]    
Number of options outstanding, beginning 2,928,750 2,067,500
Number of options granted 1,423,836 1,000,000
Number of options exercised (371,000) (38,750)
Number of options forfeited/cancelled/expired (50,000) (100,000)
Number of options outstanding, ending 3,931,586 2,928,750
Weighted average exercise price outstanding, beginning $ 2.96 $ 1.68
Weighted average exercise price granted 6.66 5.41
Weighted average exercise price exercised 1.90 1.50
Weighted average exercise price forfeited/cancelled/expired 3.00 1.50
Weighted average exercise price outstanding, ending 4.41 $ 2.96
Weighted average exercise price vested and exercisable $ 2.68  
Weighted average remaining contractual term outstanding, beginning 3 years 8 months 16 days 4 years 5 months 8 days
Weighted average remaining contractual term outstanding, ending 4 years 10 months 20 days 3 years 8 months 16 days
Weighted average remaining contractual term vested and exercisable 2 years 7 months 6 days  
Aggregate intrinsic value outstanding $ 5,176,337  
Aggregate intrinsic value vested and exercisable $ 4,965,155