Significant Accounting Policies (Concentration of Credit Risk) (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Cash, uninsured amount	$ 3,654,000
Concentration Risk [Line Items]
Policy receivables and agents' balances, net	11,985,000	$ 11,653,000
Single Largest Agent Balance Due
Concentration Risk [Line Items]
Policy receivables and agents' balances, net	$ 729,000

Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of all premiums and other types of receivables due from other persons or entities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.5)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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