Summary of Significant Accounting Policies - Revenue Recognition (Details)		1 Months Ended		12 Months Ended
	Apr. 15, 2020 USD ($) item	Oct. 31, 2020 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Aug. 28, 2018 shares
Disaggregation of Product Revenue
Warrants to purchase (in shares) | shares						9,580
Fee Settlement Agreement
Disaggregation of Product Revenue
Trial delay fee event of failure of initiation of phase 2 study		$ 2,500,000
Shares issued (in shares) | shares		2,000,000
Warrants to purchase (in shares) | shares		6,218,954
Exercise price (in dollars per share) | $ / shares		$ 0.000
Settlement loss		$ 1,000,000
Atlas
Disaggregation of Product Revenue
Trial delay fee event of failure of initiation of phase 2 study			$ 2,500,000	$ 2,500,000
Deferred revenue recorded derecognized				1,500,000
Total deferred transaction price				1,500,000
Total transaction price	$ 1,500,000			0
Atlas | Patent purchase agreement
Disaggregation of Product Revenue
Upfront cash payments received	1,500,000
Atlas | License Agreement, Phase 2 Study [Member]
Disaggregation of Product Revenue
Upfront cash payments received	$ 1,500,000
Number of performance obligations | item	2
Total transaction price	$ 1,000,000
Atlas | License Agreement, Phase 2 Study [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-16
Disaggregation of Product Revenue
Performance obligations period	13 months 6 days
Atlas | License Agreement, Patent Sale [Member]
Disaggregation of Product Revenue
Total transaction price	$ 529,000
Mytesi
Disaggregation of Product Revenue
Product revenue				9,300,000	$ 5,700,000
Neonorm
Disaggregation of Product Revenue
Product revenue				$ 76,000	$ 102,000
License | Atlas | License Agreement
Disaggregation of Product Revenue
License term	10 years
Obligated initiate proof of concept	9 months
License | Atlas | License Agreement | Minimum
Disaggregation of Product Revenue
Number of trial delay payments | item	3
License | Atlas | License Agreement | Maximum
Disaggregation of Product Revenue
Phase 2 completion period	5 years