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Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 381,058	$ 374,343
Gross Unrealized Gains	1,870	2,263
Gross Unrealized Losses	(5,856)	(6,611)
Fair Value	377,072	369,995
Corporate bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	1,042	1,343
Gross Unrealized Gains	5	4
Gross Unrealized Losses	(6)	(8)
Fair Value	1,041	1,339
Small Business Administration
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	16,720	17,236
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(479)	(530)
Fair Value	16,241	16,706
U.S. Treasury and U.S. government sponsored entities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	5,467	5,970
Gross Unrealized Gains	4	5
Gross Unrealized Losses	(49)	(54)
Fair Value	5,422	5,921
State and political subdivisions
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	166,479	157,014
Gross Unrealized Gains	1,108	1,049
Gross Unrealized Losses	(2,562)	(2,760)
Fair Value	165,025	155,303
Mortgage-backed securities - residential
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	170,675	171,215
Gross Unrealized Gains	567	1,019
Gross Unrealized Losses	(2,064)	(2,552)
Fair Value	169,178	169,682
Collateralized mortgage obligations - residential
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	20,504	21,397
Gross Unrealized Gains	2	1
Gross Unrealized Losses	(695)	(705)
Fair Value	19,811	20,693
Equity securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	171	168
Gross Unrealized Gains	184	185
Gross Unrealized Losses	(1)	(2)
Fair Value	$ 354	$ 351

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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