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Investment Securities Amortized Cost and Estimated Fair Value of Available for Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 212,148	$ 221,311	$ 152,350
Unrealized Gains	4,824	2,758	4,223
Unrealized Losses	(247)	(1,030)	(256)
Fair Value (Estimated)	216,725	223,039	156,317
Mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	190,025	194,563	124,969
Unrealized Gains	3,837	1,509	2,790
Unrealized Losses	(205)	(962)	(142)
Fair Value (Estimated)	193,657	195,110	127,617
State and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,975	23,367	24,384
Unrealized Gains	948	1,201	1,328
Unrealized Losses	(19)	(62)	(114)
Fair Value (Estimated)	19,904	24,506	25,598
Other equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,148	3,381	2,997
Unrealized Gains	39	48	105
Unrealized Losses	(23)	(6)	0
Fair Value (Estimated)	$ 3,164	$ 3,423	$ 3,102

X

- Definition

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
-Section 25
-Paragraph 1
-Subparagraph (b)
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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

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-Publisher FASB
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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.

+ References

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