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Stock Options Excluded from Calculation of Diluted Net Loss Per Share (Details Narrative) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Number of Stock Options        
Antidilutive Securities Excluded from Calculation of Diluted Net Income (Loss) Per Share 2,259,937 2,185,351 2,259,937 2,223,476
Number of Restricted Stock        
Antidilutive Securities Excluded from Calculation of Diluted Net Income (Loss) Per Share 394,506   394,506