Commitments - Additional information (Details) - USD ($)	2 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	May 31, 2021	Jun. 30, 2021	Jun. 30, 2020	May 31, 2021	Jun. 30, 2021	Jun. 30, 2020
Fifth Avenue New York [Member]
Operating Leases, Rent Expense		$ 110,000	$ 219,000		$ 110,000	$ 219,000
Operating Leases, Future Minimum Payments Due		$ 1,800,000			$ 1,800,000
17 State New York
Operating Leases, Rent Expense	$ 43,000		$ 92,000	$ 108,000		$ 183,000