Investments Net investment income (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale [Line Items]
Interest from fixed maturities	$ 236	$ 190
Dividends	359	501
Income from limited liability investments	241	1,551
(Loss) gain on change in fair value of limited liability investment, at fair value	1,174	3,973
Profit (Loss) from Real Estate Operations	800	800
Other	230	386
Gross investment income	3,040	7,109
Investment expenses	(83)	(22)
Net investment income	2,957	7,087
Warrant [Member]
Debt Securities, Available-for-sale [Line Items]
(Loss) gain on change in fair value of warrants - not publicly traded	$ 0	$ (292)

Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).

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Amount of realized and unrealized gain (loss) on investment.

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Amount of interest income earned from interest bearing assets classified as other.

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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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Amount of expenses related to the generation of investment income.

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The net cost of operation of other real estate (including provisions for real estate losses, rental income, and gains and losses on sales of real estate).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The increase (decrease), resulting in a loss, in the difference between the fair value and the carrying value, or in the comparative fair values, of securities held at each balance sheet date, that was included in earnings for the period.

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