Related Parties (Details) - Investment Firm Services [Member] $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) Director	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Related Party [Abstract]
Management fees and commissions	$ 110	$ 145	$ 103
Director [Member]
Related Party [Abstract]
Number of related parties \| Director	1
Market value of equity and fixed maturity securities portfolio	$ 7,796

Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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