KNOW Bio, LLC (Details)			3 Months Ended
	Oct. 13, 2017 USD ($) oncovirus	Dec. 29, 2015	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 30, 2015
Collaborative Arrangements Transactions [Line Items]
Milestone and royalty payments			$ 0	$ 0
KNOW Bio
Collaborative Arrangements Transactions [Line Items]
Percentage of outstanding member interests of KNOW Bio distributed to stockholders					100.00%
Written notice to terminate, period			90 days
Option term for development and commercialization of products	3 years
Right to sublicense, term		3 years
Upfront license agreement payment due upon execution	$ 250,000
KNOW Bio | Maximum
Collaborative Arrangements Transactions [Line Items]
Number of other specified oncoviruses | oncovirus	4