Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning balance			$ 167,498	$ 161,554
Other comprehensive income (loss)	$ 880	$ (1,608)	2,721	(1,570)
Balance, ending period	174,788	163,809	174,788	163,809
Accumulated Net Investment Gain (Loss) Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, beginning balance	2,975	2,579	1,123	2,522
Unrealized gains (losses) arising during the period	1,570	(2,448)	4,957	(965)
Reclassification of realized (gains) losses during the period	5	0	(531)	(1,395)
Related deferred taxes	(550)	857	(1,549)	826
Other comprehensive income (loss)	1,025	(1,591)	2,877	(1,534)
Balance, ending period	$ 4,000	$ 988	$ 4,000	$ 988

Accumulated Other Comprehensive Income (Loss) [Roll Forward]

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Amount before tax and reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Amount before tax of reclassification adjustments of other comprehensive income (loss).

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- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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