Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	$ 785	$ (1,722)
Before reclassifications	1,909	1,874
Reclassifications	(219)	(61)
Balance at end of period	2,475	91
Unrealized Gains and Losses on Available-for-Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	1,126	(1,641)
Before reclassifications	1,823	1,867
Reclassifications	(219)	(61)
Balance at end of period	2,730	165
Changes in Pension Plan Assets and Benefit Obligations [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(341)	(81)
Before reclassifications	86	7
Reclassifications	0	0
Balance at end of period	$ (255)	$ (74)