Loans Receivable and Allowance for Loan Losses (Allowance for Loan Losses and Recorded Investment in Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 7,298	$ 5,875
Charge Offs	(136)	(495)
Recoveries	30	7
Provision for loan losses	450	620
Allowance at end of period	7,642	6,007
Ending balance individually evaluated for impairment	1,644	284
Ending balance collectively evaluated for impairment	5,998	5,723
Residential Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	1,069	1,323
Charge Offs	0	(87)
Recoveries	1	2
Provision for loan losses	7	115
Allowance at end of period	1,077	1,353
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	1,077	1,353
Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	5,506	3,890
Charge Offs	(129)	(393)
Recoveries	2	0
Provision for loan losses	379	497
Allowance at end of period	5,758	3,994
Ending balance individually evaluated for impairment	1,644	284
Ending balance collectively evaluated for impairment	4,114	3,710
Construction Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	90	222
Charge Offs	0	0
Recoveries	0	0
Provision for loan losses	19	(107)
Allowance at end of period	109	115
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	109	115
Commercial, financial and agricultural loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	397	256
Charge Offs	0	0
Recoveries	0	0
Provision for loan losses	49	97
Allowance at end of period	446	353
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	446	353
Consumer loans to individuals [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	236	184
Charge Offs	(7)	(15)
Recoveries	27	5
Provision for loan losses	(4)	18
Allowance at end of period	252	192
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	$ 252	$ 192

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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- Definition

Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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No definition available.

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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-Name Accounting Standards Codification
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-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

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