Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Income (Loss) (Changes in the Components of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Roll Forward]
Balance, beginning of period			$ 104,801	$ 95,960
Other comprehensive income before reclassifications	$ 347	$ 490	459	820
Amounts reclassified from accumulated other comprehensive income (loss)		(28)		(43)
Total other comprehensive income	334	462	385	777
Balance, end of period	108,848	101,628	108,848	101,628
Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Roll Forward]
Balance, beginning of period	(549)	185	(600)	(130)
Total other comprehensive income			385	777
Balance, end of period	(215)	647	(215)	647
Unrealized Holding Gains (Losses) on Available for Sale Securities [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Roll Forward]
Balance, beginning of period	(271)	420	(334)	90
Other comprehensive income before reclassifications	347	470	459	800
Amounts reclassified from accumulated other comprehensive income (loss)	1	0	(48)	0
Total other comprehensive income	348	470	411	800
Balance, end of period	77	890	77	890
Unrealized Impairment Loss on Held to Maturity Security [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Roll Forward]
Balance, beginning of period	(331)	(331)	(331)	(331)
Other comprehensive income before reclassifications	0	0	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	0	0
Total other comprehensive income	0	0	0	0
Balance, end of period	(331)	(331)	(331)	(331)
Unfunded Pension Liability [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Roll Forward]
Balance, beginning of period	53	96	65	111
Other comprehensive income before reclassifications	0	20	0	20
Amounts reclassified from accumulated other comprehensive income (loss)	(14)	(28)	(26)	(43)
Total other comprehensive income	(14)	(8)	(26)	(23)
Balance, end of period	$ 39	$ 88	$ 39	$ 88