Basis of Accounting and Consolidation 3 (AOCI) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Total accumulated other comprehensive income, net of tax	$ (2,555)		$ (5,761)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net unrealized gains on securities available-for-sale	(2,446)	$ (7,649)
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	366		394
Other than Temporary Impairment Loss, Investments, Portion in Other Comprehensive Loss, before Tax, Portion Attributable to Parent, Available-for-sale Securities	(1,375)	(1,398)
Unrealized gain (loss) on available-for-sale securities, tax benefit	1,096	3,135
Total unrealized gain (loss) on available for sale securities, net of tax	(1,716)		(4,908)
Securities with other-than-temporary impairment losses, tax benefit	536	545
Total securities with other-than-temporary impairment losses, net of tax	(839)		(853)
Accumulated other comprehensive income, tax	1,632	$ 3,680
Total accumulated other comprehensive income, net of tax	$ (2,555)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest			$ (5,761)