Subsequent Events (Details)																					1 Months Ended	12 Months Ended
	Mar. 24, 2023 USD ($) shares	Mar. 23, 2023 USD ($) $ / shares shares	Mar. 21, 2023 USD ($)	Mar. 17, 2023 USD ($) $ / shares shares	Feb. 08, 2023 USD ($) $ / shares shares	Jan. 23, 2023 $ / shares	Jan. 20, 2023	Jan. 08, 2023 USD ($)	Jan. 05, 2023 $ / shares	Jan. 01, 2023 USD ($) shares	Nov. 18, 2022 shares	Jul. 25, 2022 shares	May 13, 2022 shares	Mar. 09, 2022 shares	Mar. 04, 2022 shares	Mar. 02, 2022 shares	Feb. 17, 2022 $ / shares	Feb. 11, 2022 shares	Sep. 03, 2021	Apr. 13, 2021 shares	Jan. 31, 2023 Plant	Dec. 31, 2021 USD ($) shares	Dec. 31, 2022 USD ($)
Subsequent Events.
Consecutive business days																	30 days
Reverse stock split ratio																			0.33
Cash																						$ 17,051,000	$ 5,469,000
Minimum
Subsequent Events.
Share Price | $ / shares																	$ 1.00
Filament Health | Magdalena Biosciences, Inc.
Subsequent Events.
Number of highly characterized medicinal plants | Plant																					2,300
Number of plant extracts | Plant																					3,500
Iliad
Subsequent Events.
Stock issued during period, shares, new issues | shares											73,333	31,546	15,249	24,667	26,667	32,333		23,117		7,843
December 2021 ATM Agreement
Subsequent Events.
Stock issued during period, shares, new issues | shares																						923,164
Subsequent event
Subsequent Events.
Common stock, par value (in dollars per share) | $ / shares						$ 0.0001			$ 0.0001
Minimum bid price for Nasdaq listing | $ / shares									$ 0.10
Consecutive business days									10 days
Grace period									180 days
Reverse stock split ratio						0.01	0.01
Minimum stockholders' equity required for continued listing			$ 2,500,000
Cash			$ 13,600,000
Subsequent event | Minimum
Subsequent Events.
Share Price | $ / shares									$ 1.00
Reverse stock split ratio							0.33
Subsequent event | Maximum
Subsequent Events.
Reverse stock split ratio							0.01
Subsequent event | December 2020 royalty interest agreements
Subsequent Events.
Aggregate purchase price					$ 675,000
Common stock, par value (in dollars per share) | $ / shares					$ 0.0001
Stock issued during period, shares, new issues | shares					150,000
Subsequent event | Streeterville
Subsequent Events.
Reduction in outstanding balance of royalty interest								$ 675,000
Subsequent event | Iliad
Subsequent Events.
Stock issued during period, shares, new issues | shares	280,005
Shares issued on conversion | shares				1,090,000
Reduction in outstanding balance of royalty interest	$ 227,000			$ 992,000
Subsequent event | Iliad | October 2020 royalty interest agreements
Subsequent Events.
Aggregate purchase price		$ 227,000		$ 992,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001		$ 0.0001
Stock issued during period, shares, new issues | shares		280,005		1,090,000
Subsequent event | December 2021 ATM Agreement
Subsequent Events.
Additional shares issued | shares										10,135,550
Total net proceeds of shares issued										$ 17,500,000