Securities - Related Gross Unrealized Gains and Losses and Amortized Cost (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 183,591	$ 172,480
Gross Unrealized Gains	594	194
Gross Unrealized Losses	(539)	(1,234)
Securities available-for-sale	183,646	171,440
U.S. government agencies
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	12,680	14,629
Gross Unrealized Gains	0	13
Gross Unrealized Losses	(89)	(35)
Securities available-for-sale	12,591	14,607
States and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	13,062	10,190
Gross Unrealized Gains	76	16
Gross Unrealized Losses	(11)	(25)
Securities available-for-sale	13,127	10,181
U.S. government agency residential mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	139,627	127,039
Gross Unrealized Gains	165	7
Gross Unrealized Losses	(438)	(1,017)
Securities available-for-sale	139,354	126,029
Collateralized residential mortgage obligations: Agency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	15,549	17,990
Gross Unrealized Gains	62	0
Gross Unrealized Losses	(1)	(157)
Securities available-for-sale	15,610	17,833
Equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,673	2,632
Gross Unrealized Gains	291	158
Gross Unrealized Losses	0	0
Securities available-for-sale	$ 2,964	$ 2,790

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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