Significant Accounting Policies, Leases (Details) - Office Space in Boston, Massachusetts [Member] $ in Millions	6 Months Ended
Jun. 30, 2022 USD ($)
Leases [Abstract]
Free rent period under sublease agreement	7 months
Lease payments to be received over sublease term	$ 9.6

Amount of lease payments to be received by lessor for operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=124258985&loc=SL77919396-209981

Name:	us-gaap_LessorOperatingLeasePaymentsToBeReceived
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant