Loans and Allowance for Loan Losses (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal	$ 17,209	$ 18,557
Impaired loan balance	15,408	16,756
Impaired loans without an allowance	7,434	11,529
Impaired loans with an allowance	7,974	5,227
Related allowance recorded	1,036	951	951
Year-to-date average loan balance	16,222	13,219
Year-to-date interest income recognized	84	317
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal	349	782
Impaired loan balance	349	782
Impaired loans without an allowance	187	326
Impaired loans with an allowance	162	456
Related allowance recorded	77	82
Year-to-date average loan balance	352	800
Year-to-date interest income recognized	0	0
Construction Loans [Member]
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal	9,848	9,895
Impaired loan balance	8,113	8,160
Impaired loans without an allowance	6,076	6,098
Impaired loans with an allowance	2,037	2,062
Related allowance recorded	61	234
Year-to-date average loan balance	8,143	8,383
Year-to-date interest income recognized	75	279
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal	2,884	2,936
Impaired loan balance	2,884	2,936
Impaired loans without an allowance	278	278
Impaired loans with an allowance	2,606	2,658
Related allowance recorded	74	140
Year-to-date average loan balance	2,917	3,046
Year-to-date interest income recognized	4	18
Commercial Loan [Member]
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal	3,299	4,148
Impaired loan balance	3,299	4,148
Impaired loans without an allowance	149	4,115
Impaired loans with an allowance	3,150	33
Related allowance recorded	800	488
Year-to-date average loan balance	4,045	192
Year-to-date interest income recognized	0	0
Municipal Bonds [Member]
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal	772	772
Impaired loan balance	706	706
Impaired loans without an allowance	706	706
Impaired loans with an allowance	0	0
Related allowance recorded	0	0
Year-to-date average loan balance	706	772
Year-to-date interest income recognized	5	20
Consumer Loan [Member]
Financing Receivable, Impaired [Line Items]
Unpaid contractual principal	57	24
Impaired loan balance	57	24
Impaired loans without an allowance	38	6
Impaired loans with an allowance	19	18
Related allowance recorded	24	7
Year-to-date average loan balance	59	26
Year-to-date interest income recognized	$ 0	$ 0

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5258-111524

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+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953550-111524

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