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7. Stock Based Compensation (Details Narrative) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Options vested 0  
Closing price of common stock $ 5.97  
Unrecognized share-based compensation expense $ 1,300,000  
Unrecognized share-based compensation expense period of recogntion 3 years 3 months 18 days  
2016 Stock Incentive Plan    
Options vested 24,000 24,000