Accumulated Other Comprehensive Income, Reclassification of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain on sale of securities	$ 371	$ 111
Less provision for income taxes	1,068	1,082
Unrealized Gains and Losses on Available-for-Sale Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain on sale of securities	371	111
Less provision for income taxes	126	38
Reclassification adjustment, net of taxes	$ 245	$ 73