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Loans, Allowance For Loan Losses And OREO (Allowance For Loan Losses And Recorded Investment In Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for Credit Losses: Beginning Balance |  | $ 4,752 | $ 5,716 | $ 5,716
Allowance for Credit Losses: Charge-offs |  | (240) |  | (2,094)
Allowance for Credit Losses: Recoveries |  | 137 |  | 137
Allowance for credit losses: Provision |  | 22 | 100 | 993
Allowance for Credit Losses: Ending Balance |  | 4,671 |  | 4,752
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment |  | 383 |  | 563
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment |  | 4,288 |  | 4,189
Allowance for Credit Losses: Totals |  | 4,671 |  | 4,752
Financing Receivables: Ending Balance: Individually evaluated for impairment |  | 6,865 |  | 7,690
Financing Receivables: Ending Balance: Collectively evaluated for impairment |  | 499,683 |  | 488,084
Total loans | [1] | 506,548 |  | 495,774
Commercial [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for Credit Losses: Beginning Balance |  | 1,264 | 2,192 | 2,192
Allowance for Credit Losses: Charge-offs |  | (13) |  | (1,652)
Allowance for Credit Losses: Recoveries |  | 98 |  | 6
Allowance for credit losses: Provision |  | 56 |  | 718
Allowance for Credit Losses: Ending Balance |  | 1,405 |  | 1,264
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment |  | 134 |  | 112
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment |  | 1,271 |  | 1,152
Allowance for Credit Losses: Totals |  | 1,405 |  | 1,264
Financing Receivables: Ending Balance: Individually evaluated for impairment |  | 1,206 |  | 1,242
Financing Receivables: Ending Balance: Collectively evaluated for impairment |  | 95,777 |  | 94,885
Total loans |  | 96,983 |  | 96,127
Commercial Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for Credit Losses: Beginning Balance |  | 1,738 | 2,109 | 2,109
Allowance for Credit Losses: Charge-offs |  | (82) |  | (91)
Allowance for Credit Losses: Recoveries |  |  |  | 41
Allowance for credit losses: Provision |  | (72) |  | (321)
Allowance for Credit Losses: Ending Balance |  | 1,584 |  | 1,738
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment |  | 100 |  | 190
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment |  | 1,484 |  | 1,548
Allowance for Credit Losses: Totals |  | 1,584 |  | 1,738
Financing Receivables: Ending Balance: Individually evaluated for impairment |  | 3,446 |  | 4,009
Financing Receivables: Ending Balance: Collectively evaluated for impairment |  | 258,173 |  | 247,798
Total loans |  | 261,619 |  | 251,807
Consumer [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for Credit Losses: Beginning Balance |  | 1,172 | 954 | 954
Allowance for Credit Losses: Charge-offs |  | (145) |  | (246)
Allowance for Credit Losses: Recoveries |  | 39 |  | 51
Allowance for credit losses: Provision |  | (3) |  | 413
Allowance for Credit Losses: Ending Balance |  | 1,063 |  | 1,172
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment |  | 114 |  | 257
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment |  | 949 |  | 915
Allowance for Credit Losses: Totals |  | 1,063 |  | 1,172
Financing Receivables: Ending Balance: Individually evaluated for impairment |  | 557 |  | 708
Financing Receivables: Ending Balance: Collectively evaluated for impairment |  | 84,519 |  | 83,038
Total loans |  | 85,076 |  | 83,746
Residential Real Estate [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |
Allowance for Credit Losses: Beginning Balance |  | 578 | $ 461 | 461
Allowance for Credit Losses: Charge-offs |  |  |  | (105)
Allowance for Credit Losses: Recoveries |  |  |  | 39
Allowance for credit losses: Provision |  | 41 |  | 183
Allowance for Credit Losses: Ending Balance |  | 619 |  | 578
Allowance for Credit Losses: Ending Balance: Individually evaluated for impairment |  | 35 |  | 4
Allowance for Credit Losses: Ending Balance: Collectively evaluated for impairment |  | 584 |  | 574
Allowance for Credit Losses: Totals |  | 619 |  | 578
Financing Receivables: Ending Balance: Individually evaluated for impairment |  | 1,656 |  | 1,731
Financing Receivables: Ending Balance: Collectively evaluated for impairment |  | 61,214 |  | 62,363
Total loans |  | $ 62,870 |  | $ 64,094
[1] | Includes net deferred costs and premiums of $764 and $940 as of March 31, 2018 and December 31, 2017, respectively.

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + 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)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + 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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + 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 direct write-downs of financing receivables charged against the allowance. + 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 + Details
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- Definition The balance of financing receivables 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 (h) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition The balance of financing receivables 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 (h) -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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