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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		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL Beginning Balance	$ 9,769	$ 9,922	$ 9,972	$ 9,918
Charge-offs	(257)	(245)	(1,669)	(3,420)
Recoveries	340	177	833	2,448
Provision for loan losses	471	901	1,187	1,809
ALL Ending Balance	10,323	10,755	10,323	10,755
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL Beginning Balance	3,303	3,649	3,699	3,913
Charge-offs	0	(53)	(889)	(2,798)
Recoveries	0	5	60	68
Provision for loan losses	(490)	936	(57)	3,354
ALL Ending Balance	2,813	4,537	2,813	4,537
Acquisition and Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL Beginning Balance	1,172	1,200	1,257	871
Charge-offs	0	(61)	(98)	(79)
Recoveries	32	42	290	230
Provision for loan losses	291	3	46	162
ALL Ending Balance	1,495	1,184	1,495	1,184
Commercial and industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL Beginning Balance	786	836	869	858
Charge-offs	(22)	(4)	(32)	(37)
Recoveries	13	15	44	1,666
Provision for loan losses	224	(43)	120	(1,683)
ALL Ending Balance	1,001	804	1,001	804
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL Beginning Balance	3,744	3,545	3,444	3,588
Charge-offs	(113)	(16)	(353)	(252)
Recoveries	258	46	323	299
Provision for loan losses	329	(41)	804	(101)
ALL Ending Balance	4,218	3,534	4,218	3,534
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL Beginning Balance	264	192	203	188
Charge-offs	(122)	(111)	(297)	(254)
Recoveries	37	69	116	185
Provision for loan losses	117	46	274	77
ALL Ending Balance	296	196	296	196
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
ALL Beginning Balance	500	500	500	500
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for loan losses	0	0	0	0
ALL Ending Balance	$ 500	$ 500	$ 500	$ 500

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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
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Amount of direct write-downs of financing receivables charged against the allowance.

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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.

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

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