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9. Outstanding Warrants (Details 1) - Warrants - $ / shares
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Number of outstanding, beginning 95 95
Number of warrants granted 227 227
Number of warrants exercised (227) (227)
Number of outstanding, ending 95 95
Weighted average exercise price outstanding, beginning $ 2.59 $ 2.59
Weighted average exercise price granted 0.01 0.01
Weighted average exercise price exercised 0.01 0.01
Weighted average exercise price outstanding, ending $ 2.59 $ 2.59
Weighted average remaining contractual life (in years) outstanding, beginning 5 years 11 months 12 days 6 years 11 months 12 days
Weighted average remaining contractual life (in years) outstanding, ending 4 years 11 months 12 days 5 years 11 months 12 days