Prepaid Expenses (Details) - Schedule of prepaid expenses - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Prepaid expenses [Abstract]
Prepaid insurance	$ 15	$ 152	$ 14
Other prepayments	110	22	$ 63
Total	$ 125	$ 174

Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

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