Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018		Dec. 31, 2018	Jan. 01, 2018
New Accounting Pronouncement, Early Adoption [Line Items]
Beginning Balance	$ (481)
Accumulated other comprehensive income (loss)	(457)	$ (100)		$ (481)	$ 63
Unrealized appreciation (loss) before reclassifications	24	(176)	[1]
Amounts reclassified from accumulated other comprehensive income	0	0
Net current-period other comprehensive income (loss)	24	(176)
Ending Balance	(457)	$ (100)
ASU 2018-02 effect
New Accounting Pronouncement, Early Adoption [Line Items]
Adjustment due to ASU 2018-02				0	$ 13	[1]
ASU 2018-02 end balance
New Accounting Pronouncement, Early Adoption [Line Items]
Beginning Balance	(481)
Accumulated other comprehensive income (loss)	$ (481)			$ (481)

[1] Due to the implementation of ASU 2018-02, the tax rate changed from 37.75% to 24.5%.