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Loans Receivable and Allowance for Loan Losses (Allowance for Loan Losses and Recorded Investment in Financing Receivables) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Allowance at beginning of period | $ 7,298 | $ 5,875 | $ 5,708
Charge Offs | (2,951) | (3,198) | (1,546)
Recoveries | 66 | 41 | 33
Provision for Loan Losses | 2,050 | 4,580 | 1,680
Allowance at end of period | 6,463 | 7,298 | 5,875
Ending balance individually evaluated for impairment | 3 | 1,613 | 293
Ending balance collectively evaluated for impairment | 6,460 | 5,685 | 5,582
Residential Real Estate Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Allowance at beginning of period | 1,069 | 1,323 | 1,441
Charge Offs | (123) | (224) | (270)
Recoveries | 6 | 20 |
Provision for Loan Losses | 140 | (50) | 152
Allowance at end of period | 1,092 | 1,069 | 1,323
Ending balance individually evaluated for impairment | 0 | 0 |
Ending balance collectively evaluated for impairment | 1,092 | 1,069 | 1,323
Commercial Real Estate Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Allowance at beginning of period | 5,506 | 3,890 | 3,025
Charge Offs | (2,711) | (2,883) | (1,196)
Recoveries | 15 | 0 | 2
Provision for Loan Losses | 1,813 | 4,499 | 2,059
Allowance at end of period | 4,623 | 5,506 | 3,890
Ending balance individually evaluated for impairment | 3 | 1,613 | 293
Ending balance collectively evaluated for impairment | 4,620 | 3,893 | 3,597
Construction Real Estate Loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Allowance at beginning of period | 90 | 222 | 898
Charge Offs | 0 | 0 |
Recoveries | 0 | 0 |
Provision for Loan Losses | (12) | (132) | (676)
Allowance at end of period | 78 | 90 | 222
Ending balance individually evaluated for impairment | 0 | 0 |
Ending balance collectively evaluated for impairment | 78 | 90 | 222
Commercial, financial and agricultural loans [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Allowance at beginning of period | 397 | 256 | 184
Charge Offs | (15) | 0 |
Recoveries | 0 | 0 |
Provision for Loan Losses | (75) | 141 | 72
Allowance at end of period | 307 | 397 | 256
Ending balance individually evaluated for impairment | 0 | 0 |
Ending balance collectively evaluated for impairment | 307 | 397 | 256
Consumer loans to individuals [Member] |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |
Allowance at beginning of period | 236 | 184 | 160
Charge Offs | (102) | (91) | (80)
Recoveries | 45 | 21 | 31
Provision for Loan Losses | 184 | 122 | 73
Allowance at end of period | 363 | 236 | 184
Ending balance individually evaluated for impairment | 0 | 0 |
Ending balance collectively evaluated for impairment | $ 363 | $ 236 | $ 184

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + 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 (c)(4) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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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. + 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 (c)(3) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: 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 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + 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=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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=66008989&loc=SL6953423-111524 + Details
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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=66008989&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=66008989&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 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: 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 + Details
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