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Summary of Exercise Price of Employee Stock Options Outstanding (Details)
6 Months Ended
Jun. 30, 2023
$ / shares
shares
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Stock options, outstanding | shares 109,290,638
Stock options, weighted average remaining life 2 years 3 months 3 days
Stock options, weighted average exercise price $ 0.0262
Stock options, excercisable | shares 57,877,504
Stock options, weighted average exercise price, exercisable $ 0.0217
Stock options, weighted average remaining life, exercisable 1 year 9 months 25 days
Exercise Price Range One [Member]  
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise price, lower range limit $ 0.018
Exercise price, upper range limit $ 0.0225
Stock options, outstanding | shares 70,730,020
Stock options, weighted average remaining life 1 year 8 months 12 days
Stock options, weighted average exercise price $ 0.0182
Stock options, excercisable | shares 45,730,020
Stock options, weighted average exercise price, exercisable $ 0.0181
Stock options, weighted average remaining life, exercisable 1 year 4 months 13 days
Exercise Price Range Two [Member]  
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise price, lower range limit $ 0.0229
Exercise price, upper range limit $ 0.0325
Stock options, outstanding | shares 5,018,254
Stock options, weighted average remaining life 4 years 18 days
Stock options, weighted average exercise price $ 0.0267
Stock options, excercisable | shares 4,993,254
Stock options, weighted average exercise price, exercisable $ 0.0267
Stock options, weighted average remaining life, exercisable 4 years 18 days
Exercise Price Range Three [Member]  
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise price, lower range limit $ 0.0360
Exercise price, upper range limit $ 0.0425
Stock options, outstanding | shares 25,457,364
Stock options, weighted average remaining life 3 years 25 days
Stock options, weighted average exercise price $ 0.0398
Stock options, excercisable | shares 6,179,230
Stock options, weighted average exercise price, exercisable $ 0.0395
Stock options, weighted average remaining life, exercisable 3 years 3 days
Exercise Price Range Four [Member]  
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise price, lower range limit $ 0.0440
Exercise price, upper range limit $ 0.0531
Stock options, outstanding | shares 8,085,000
Stock options, weighted average remaining life 3 years 21 days
Stock options, weighted average exercise price $ 0.0529
Stock options, excercisable | shares 975,000
Stock options, weighted average exercise price, exercisable $ 0.0520
Stock options, weighted average remaining life, exercisable 2 years 2 months 15 days