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Non-controlling Interest (Details) - USD ($)		3 Months Ended					9 Months Ended		28 Months Ended
	Sep. 05, 2018	Sep. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Noncontrolling Interest
Related Party Transaction, Expenses from Transactions with Related Party									$ 328,000
Research and Development Expense		$ 1,972,000		$ 914,000			$ 5,021,000	$ 4,152,000
Net Income (Loss) Attributable to Noncontrolling Interest		$ 0	$ (1,000)	(8,000)	$ (16,000)	$ (26,000)	$ (1,000)	(50,000)
SYN Biomics [Member]
Noncontrolling Interest
Equity interest by parent		83.00%					83.00%
Related Party Transaction, Expenses from Transactions with Related Party		$ 0					$ 0
Research and Development Expense				134,000				225,000
Accumulated net loss attributable to the non-controlling interest		$ 2,800,000		$ 2,800,000			$ 2,800,000	$ 2,800,000
Cedarssinai Medical Center [Member]
Noncontrolling Interest
Number Of Common Stock To Be Issued	50,000
Fair Value Of Shares Issued	$ 285,000
Cedarssinai Medical Center [Member] | SYN Biomics [Member]
Noncontrolling Interest
Additional Number Of Common Stock To Be Issued	2,420,000
Number Of Common Stock To Be Held By Related Party	7,480,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	17.00%

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