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Securities Available for Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	$ 374,343	$ 394,317
Gross Unrealized Gains	2,263	3,958
Gross Unrealized Losses	(6,611)	(3,963)
Fair Value	369,995	394,312
Corporate bonds
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	1,343	1,134
Gross Unrealized Gains	4	5
Gross Unrealized Losses	(8)	(5)
Fair Value	1,339	1,134
Collateralized mortgage obligations
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	21,397	28,035
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(705)	(870)
Fair Value	20,693	27,165
Small Business Administration
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	17,236	19,755
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(530)	(457)
Fair Value	16,706	19,299
U.S. Treasury and U.S. government sponsored entities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	5,970	11,120
Gross Unrealized Gains	5	38
Gross Unrealized Losses	(54)	(52)
Fair Value	5,921	11,106
State and political subdivisions
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	157,014	136,781
Gross Unrealized Gains	1,049	2,354
Gross Unrealized Losses	(2,760)	(412)
Fair Value	155,303	138,723
Mortgage-backed securities - residential
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	171,215	197,289
Gross Unrealized Gains	1,019	1,433
Gross Unrealized Losses	(2,552)	(2,135)
Fair Value	169,682	196,587
Equity securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	168	203
Gross Unrealized Gains	185	127
Gross Unrealized Losses	(2)	(32)
Fair Value	$ 351	$ 298

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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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