Investment Securities - Summary of Unrealized Losses of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Securities with losses under 12 months, Fair Value	$ 6,915	$ 541
Held-to-maturity, Securities with losses under 12 months, Gross Unrealized Loss	12	1
Held-to-maturity, Securities with losses over 12 months, Fair Value	10,740	17,968
Held-to-maturity, Securities with losses over 12 months, Gross Unrealized Loss	197	497
Held-to-maturity, Total, Fair Value	17,655	18,509
Held-to-maturity, Total, Gross Unrealized Loss	209	498
Obligations of state and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Securities with losses under 12 months, Fair Value	0	541
Held-to-maturity, Securities with losses under 12 months, Gross Unrealized Loss	0	1
Held-to-maturity, Securities with losses over 12 months, Fair Value	505	505
Held-to-maturity, Securities with losses over 12 months, Gross Unrealized Loss	4	5
Held-to-maturity, Total, Fair Value	505	1,046
Held-to-maturity, Total, Gross Unrealized Loss	4	6
GSE mortgage-backed securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Securities with losses under 12 months, Fair Value	6,915	0
Held-to-maturity, Securities with losses under 12 months, Gross Unrealized Loss	12	0
Held-to-maturity, Securities with losses over 12 months, Fair Value	0	7,021
Held-to-maturity, Securities with losses over 12 months, Gross Unrealized Loss	0	131
Held-to-maturity, Total, Fair Value	6,915	7,021
Held-to-maturity, Total, Gross Unrealized Loss	12	131
Collateralized mortgage obligations: residential
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity, Securities with losses under 12 months, Fair Value	0	0
Held-to-maturity, Securities with losses under 12 months, Gross Unrealized Loss	0	0
Held-to-maturity, Securities with losses over 12 months, Fair Value	10,235	10,442
Held-to-maturity, Securities with losses over 12 months, Gross Unrealized Loss	193	361
Held-to-maturity, Total, Fair Value	10,235	10,442
Held-to-maturity, Total, Gross Unrealized Loss	$ 193	$ 361

Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity that have been in a continuous loss position for twelve months or longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563

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This item represents the fair value of securities categorized as held-to-maturity securities that have been in a continuous unrealized loss position for twelve months or longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563

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-Publisher FASB
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-Topic 320
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-Section 50
-Paragraph 6
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-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

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