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9. Stock Based Compensation (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Options vested 3,229 21,250
Closing price of common stock $ 10.22  
Unrecognized share-based compensation expense $ 845,000  
Unrecognized share-based compensation expense period of recogntion 2 years 8 months 12 days  
2016 Stock Incentive Plan    
Options vested 15,000 24,000