Parent Company Only Financial Information (Condensed Statements of Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Net loss/gain on investments - available for sale	$ (49)	$ 440
Total other income	14,259	14,127
Interest expense	7,371	8,223
Other expenses	5,127	6,309
Income before income taxes and equity in undistributed net loss of subsidiaries	12,214	10,064
Income Tax Expense (Benefit)	6,945	2,783
Net income	5,269	7,281
Parent Company [Member]
Dividend income from bank subsidiary	22,250	1,000
Interest income on investments	625	573
Other income	73	128
Total other income	698	701
Total Income	22,948	1,701
Interest expense	1,621	2,429
Other expenses	219	207
Total expenses	1,840	2,636
Income before income taxes and equity in undistributed net loss of subsidiaries	21,108	(935)
Income Tax Expense (Benefit)	486	693
Net loss before equity in undistributed net loss of subsidiaries	21,594	(242)
Income (Loss) from Equity Method Investments	(16,325)	7,523
Net income	5,269	7,281
Parent Company [Member] | First United Bank & Trust [Member]
Income (Loss) from Equity Method Investments	$ (16,325)	$ 7,523