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Loans and Related Allowance for Loan Losses (Allowance for Loan Losses Summarized by Loan Portfolio Segments) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
ALL Beginning Balance | $ 9,972 | $ 9,918
Charge-offs | (313) | (712)
Recoveries | 364 | 1,768
Provision for loan losses | 447 | 609
ALL Ending Balance | 10,470 | 11,583
Commercial Real Estate [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
ALL Beginning Balance | 3,699 | 3,913
Charge-offs | 0 | (429)
Recoveries | 59 | 5
Provision for loan losses | 218 | 2,078
ALL Ending Balance | 3,976 | 5,567
Acquisition and Development [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
ALL Beginning Balance | 1,257 | 871
Charge-offs | (91) | (18)
Recoveries | 214 | 11
Provision for loan losses | (220) | 19
ALL Ending Balance | 1,160 | 883
Commercial and industrial [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
ALL Beginning Balance | 869 | 858
Charge-offs | 0 | (33)
Recoveries | 18 | 1,455
Provision for loan losses | (27) | (1,344)
ALL Ending Balance | 860 | 936
Residential Mortgage [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
ALL Beginning Balance | 3,444 | 3,588
Charge-offs | (154) | (148)
Recoveries | 38 | 220
Provision for loan losses | 350 | (158)
ALL Ending Balance | 3,678 | 3,502
Consumer [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
ALL Beginning Balance | 203 | 188
Charge-offs | (68) | (84)
Recoveries | 35 | 77
Provision for loan losses | 126 | 14
ALL Ending Balance | 296 | 195
Unallocated [Member] |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
ALL Beginning Balance | 500 | 500
Charge-offs | 0 | 0
Recoveries | 0 | 0
Provision for loan losses | 0 | 0
ALL Ending Balance | $ 500 | $ 500

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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=84173941&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=84173941&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=84173941&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=84173941&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=82894903&loc=d3e15032-111544 + Details
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