Schedule of Digital Currencies (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Digital currencies, Beginning balance		$ 4
Additions of digital currencies from mining	63	686
Realized gain on sale of digital currencies	3	1
Sale of digital currencies	(64)	(691)
Digital currencies, Ending balance	$ 2

The current portion of nonphysical assets, excluding financial assets, if these assets are classified into the current and noncurrent portions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=109222160&loc=d3e1107-107759

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