Line of Credit (Details) - Line of Credit [Member] - USD ($) $ in Millions		12 Months Ended
Jan. 07, 2022	Dec. 31, 2022	Dec. 31, 2021
Line of Credit (Details) [Line Items]
Credit facility with a bank	$ 40		$ 40
Revolving credit facility, expiration date	Jan. 07, 2025
Line of credit unused portion per year		0.25%

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant