Subsequent Event—Purchase of Shares and Warrants from Rafael Holdings, Inc. (Details) - Rafael Holdings Inc [Member] - Subsequent Event [Member] $ / shares in Units, $ in Millions	Dec. 07, 2020 USD ($) $ / shares shares
Subsequent Event—Purchase of Shares and Warrants from Rafael Holdings, Inc. (Details) [Line Items]
Warrants term start date	Dec. 07, 2020
Warrants term end date	Jun. 06, 2022
Rafael Class B common stock [Member]
Subsequent Event—Purchase of Shares and Warrants from Rafael Holdings, Inc. (Details) [Line Items]
Aggregate consideration amount | $	$ 5.0
Purchased from new issued shares | shares	218,245
Number of warrants purchased | shares	43,649
Shares issued price per share | $ / shares	$ 22.91
Purchase per share price | $ / shares	$ 22.91