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Securities Available-for-Sale (Details) - Unrealized gains on investment securities - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Securities available-for-sale
Securities, Amortized Cost	$ 409,973	$ 401,048
Securities, Gross Unrealized Gains	9,627	4,875
Securities, Gross Unrealized Losses	(1,174)	(1,222)
Securities, Fair Value	418,426	404,701
Federal agency obligations [Member]
Securities available-for-sale
Securities, Amortized Cost	44,868	27,667
Securities, Gross Unrealized Gains	1,827	612
Securities, Gross Unrealized Losses	(26)	(42)
Securities, Fair Value	46,669	28,237
Residential mortgage pass-through securities [Member]
Securities available-for-sale
Securities, Amortized Cost	206,186	199,611
Securities, Gross Unrealized Gains	4,424	1,528
Securities, Gross Unrealized Losses	(40)	(643)
Securities, Fair Value	210,570	200,496
Commercial mortgage pass-through securities [Member]
Securities available-for-sale
Securities, Amortized Cost	2,026	4,995
Securities, Gross Unrealized Gains	205	37
Securities, Gross Unrealized Losses		(35)
Securities, Fair Value	2,231	4,997
Obligations of U.S. states and political subdivisions [Member]
Securities available-for-sale
Securities, Amortized Cost	126,128	134,500
Securities, Gross Unrealized Gains	2,899	2,411
Securities, Gross Unrealized Losses	(306)	(392)
Securities, Fair Value	128,721	136,519
Corporate bonds and notes [Member]
Securities available-for-sale
Securities, Amortized Cost	25,159	28,142
Securities, Gross Unrealized Gains	270	285
Securities, Gross Unrealized Losses	(594)	(45)
Securities, Fair Value	24,835	28,382
Asset-backed securities [Member]
Securities available-for-sale
Securities, Amortized Cost	5,274	5,845
Securities, Gross Unrealized Gains
Securities, Gross Unrealized Losses	(208)	(65)
Securities, Fair Value	5,066	5,780
Certificates of deposit [Member]
Securities available-for-sale
Securities, Amortized Cost	148	148
Securities, Gross Unrealized Gains	2	2
Securities, Gross Unrealized Losses
Securities, Fair Value	150	150
Other securities [Member]
Securities available-for-sale
Securities, Amortized Cost	184	140
Securities, Gross Unrealized Gains
Securities, Gross Unrealized Losses
Securities, Fair Value	$ 184	$ 140

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- Definition

Available for sale securities gross unrealized gain accumulated in investments.

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Available for sale securities gross unrealized loss accumulated in investments.

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- Definition

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

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This item represents the cost of debt and equity 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.

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