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Investments, Fair Value Measured on a Recurring Basis (Details) - Recurring [Member] - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		$ 240,594	$ 240,738
Fixed Maturities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		208,477	210,670
Equity Securities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		19,473	20,257
Cash Equivalents [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		12,644	9,811
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		26,742	24,964
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fixed Maturities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Securities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		14,098	15,153
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash Equivalents [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		12,644	9,811
Significant Other Observable Inputs (Level 2) [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		212,520	214,510
Significant Other Observable Inputs (Level 2) [Member] | Fixed Maturities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		207,145	209,406
Significant Other Observable Inputs (Level 2) [Member] | Equity Securities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value	[1]	5,375	5,104
Significant Other Observable Inputs (Level 2) [Member] | Cash Equivalents [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		0	0
Significant Unobservable Inputs (Level 3) [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		1,332	1,264
Significant Unobservable Inputs (Level 3) [Member] | Fixed Maturities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value	[1]	1,332	1,264
Significant Unobservable Inputs (Level 3) [Member] | Equity Securities [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		0	0
Significant Unobservable Inputs (Level 3) [Member] | Cash Equivalents [Member]
Financial instruments carried at fair value measured on a recurring basis [Abstract]
Assets at fair value		$ 0	$ 0
[1] All underlying securities are financial service industry related.

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- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

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No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	debit
Period Type:	instant

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- References

No definition available.

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