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Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 403,489	$ 392,397
Gross Unrealized Gains	726	4,037
Gross Unrealized Losses	(14,219)	(3,497)
Fair Value	389,996	392,937
Corporate bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	1,207	1,238
Gross Unrealized Gains	0	4
Gross Unrealized Losses	(24)	(8)
Fair Value	1,183	1,234
Small Business Administration
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	13,145	14,608
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(718)	(396)
Fair Value	12,427	14,212
U.S. Treasury and U.S. government sponsored entities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	6,561	8,986
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(178)	(69)
Fair Value	6,383	8,917
State and political subdivisions
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	205,352	188,032
Gross Unrealized Gains	707	3,614
Gross Unrealized Losses	(4,784)	(643)
Fair Value	201,275	191,003
Mortgage-backed securities - residential
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	154,726	161,635
Gross Unrealized Gains	19	419
Gross Unrealized Losses	(7,318)	(1,604)
Fair Value	147,427	160,450
Collateralized mortgage obligations - residential
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	22,498	17,898
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,197)	(777)
Fair Value	$ 21,301	$ 17,121

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563

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