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Related Party Transactions (Details) - USD ($)	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Nov. 30, 2016	Mar. 31, 2016	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Related-Party Transactions (Textual) [Abstract]
Revenue from related parties			$ 272,824	$ 267,187	$ 643,945	$ 1,594,461
Director
Related-Party Transactions (Textual) [Abstract]
Accounts receivable			617,000		617,000		$ 425,000
Expenses to reimburse		$ 3,100,000
Term		5 years
Awarded amount	$ 6,100,000
Contra-research and development expense			381,000	73,000	610,000	691,000
Operating expenses related to affiliated entity			1,200,000	408,000	1,600,000	770,000
Accounts payable/accrued liabilities			1,800,000		1,800,000		643,000
Prepaid balance			303,000		303,000
Deferred grant funding, from affiliate			69,000		69,000
The Wistar Institute
Related-Party Transactions (Textual) [Abstract]
Awarded amount							10,700,000
Awarded option amount							6,000,000.0
Plumbline Life Sciences
Related-Party Transactions (Textual) [Abstract]
Revenue from related parties			75,000	$ 64,000	125,000	$ 1,200,000
Accounts receivable			$ 99,000		$ 99,000		$ 67,000
Plumbline Life Sciences | Available-for-sale Securities
Related-Party Transactions (Textual) [Abstract]
Investment owned (in shares)			597,808		597,808
Ownership percentage			19.70%		19.70%

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