Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Amortized cost and fair value of debt securities
Total Amortized Cost	$ 218,800	$ 217,635
Gross Unrealized Gains	322	261
Gross Unrealized Losses	(2,952)	(3,384)
Fair value	216,170	214,512
U.S. government and federal agency obligations
Amortized cost and fair value of debt securities
Total Amortized Cost	13,560	13,667
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(289)	(303)
Fair value	13,271	13,364
Government sponsored enterprises
Amortized cost and fair value of debt securities
Total Amortized Cost	35,521	32,786
Gross Unrealized Gains	0	2
Gross Unrealized Losses	(331)	(329)
Fair value	35,190	32,459
Obligations of states and political subdivisions
Amortized cost and fair value of debt securities
Total Amortized Cost	46,733	42,666
Gross Unrealized Gains	180	123
Gross Unrealized Losses	(516)	(757)
Fair value	46,397	42,032
Mortgage-backed securities
Amortized cost and fair value of debt securities
Total Amortized Cost	122,986	128,516
Gross Unrealized Gains	142	136
Gross Unrealized Losses	(1,816)	(1,995)
Fair value	121,312	126,657
Mortgage-backed securities \| Residential - government agencies
Amortized cost and fair value of debt securities
Total Amortized Cost	121,996	127,527
Gross Unrealized Gains	132	124
Gross Unrealized Losses	(1,816)	(1,995)
Fair value	120,312	125,656
Mortgage-backed securities \| Commercial - government agencies
Amortized cost and fair value of debt securities
Total Amortized Cost	990	989
Gross Unrealized Gains	10	12
Gross Unrealized Losses	0	0
Fair value	$ 1,000	$ 1,001

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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