Quarterly report pursuant to Section 13 or 15(d)

Stock Option Plans - Schedule of Non-vested Shares Granted Under Stock Option Plan (Details)

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Stock Option Plans - Schedule of Non-vested Shares Granted Under Stock Option Plan (Details) - shares
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]    
Non-vested, Options Outstanding, Beginning balance 10,138 16,700
Non-vested, Options Granted
Non-vested, Options Vested (1,425) (6,271)
Non-vested, Options Canceled (291)
Non-vested, Options Outstanding, Ending balance 8,733 10,138