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8. Stock Based Compensation (Details 1)
9 Months Ended
Sep. 30, 2020
$ / shares
shares
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Number of options outstanding, beginning | shares 29,165
Forfeited | shares (12,083)
Number of options outstanding, ending | shares 17,082
Weighted Average Exercise Price Per Share  
Outstanding, beginning $ 7.20
Forfeited 8.76
Outstanding, ending 6.10
Weighted Average Grant Date Fair Value Per Share  
Outstanding, beginning 3.76
Forfeited 4.34
Outstanding, ending $ 3.36