Regulatory Capital Requirements (Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations) (Details) $ in Thousands	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital	$ 193,391	$ 182,941
Capital to Risk Weighted Assets	0.1608	0.1629
Capital Required for Capital Adequacy	$ 96,353	$ 89,837
Capital Required for Capital Adequacy to Risk Weighted Assets	0.0800	0.0800
Capital Required to be Well Capitalized	$ 120,442	$ 112,296
Capital Required to be Well Capitalized to Risk Weighted Assets	0.1000	0.1000
Tier 1 Risk Based Capital	$ 178,336	$ 170,326
Tier 1 Risk Based Capital to Risk Weighted Assets	0.1483	0.1517
Tier 1 Risk Based Capital Required for Capital Adequacy	$ 72,265	$ 67,378
Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	0.0600	0.0600
Tier 1 Risk Based Capital Required to be Well Capitalized	$ 96,353	$ 89,837
Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	0.0800	0.0800
Common equity, Amount	$ 151,709	$ 143,614
Common equity, Ratio	0.1261	0.1279
Common equity, Required For Capital Adequacy Purposes, Amount	$ 54,199	$ 50,533
Common equity, Required For Capital Adequacy Purposes, Ratio	0.0450	0.0450
Common equity, Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 78,287	$ 72,992
Common equity, Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0650	0.0650
Tier 1 Leverage Capital	$ 178,336	$ 170,326
Tier 1 Leverage Capital to Average Assets	0.1036	0.1177
Tier 1 Leverage Capital Required for Capital Adequacy	$ 68,384	$ 57,491
Tier 1 Leverage Capital Required for Capital Adequacy to Average Assets	0.0400	0.0400
Tier 1 Leverage Capital Required to be Well Capitalized	$ 85,480	$ 71,864
Tier 1 Leverage Capital Required to be Well Capitalized to Average Assets	0.0500	0.0500
First United Bank & Trust [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital	$ 181,977	$ 169,943
Capital to Risk Weighted Assets	0.1550	0.1560
Capital Required for Capital Adequacy	$ 94,084	$ 87,159
Capital Required for Capital Adequacy to Risk Weighted Assets	0.0800	0.0800
Capital Required to be Well Capitalized	$ 117,605	$ 108,948
Capital Required to be Well Capitalized to Risk Weighted Assets	0.1000	0.1000
Tier 1 Risk Based Capital	$ 167,276	$ 157,328
Tier 1 Risk Based Capital to Risk Weighted Assets	0.1425	0.1444
Tier 1 Risk Based Capital Required for Capital Adequacy	$ 70,563	$ 65,369
Tier 1 Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	0.0600	0.0600
Tier 1 Risk Based Capital Required to be Well Capitalized	$ 94,084	$ 87,159
Tier 1 Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	0.0800	0.0800
Common equity, Amount	$ 167,276	$ 157,328
Common equity, Ratio	0.1425	0.1444
Common equity, Required For Capital Adequacy Purposes, Amount	$ 52,922	$ 49,027
Common equity, Required For Capital Adequacy Purposes, Ratio	0.0450	0.0450
Common equity, Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 76,443	$ 70,817
Common equity, Required To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.0650	0.0650
Tier 1 Leverage Capital	$ 167,276	$ 157,328
Tier 1 Leverage Capital to Average Assets	0.0981	0.1099
Tier 1 Leverage Capital Required for Capital Adequacy	$ 67,643	$ 56,729
Tier 1 Leverage Capital Required for Capital Adequacy to Average Assets	0.0400	0.0400
Tier 1 Leverage Capital Required to be Well Capitalized	$ 84,554	$ 70,912
Tier 1 Leverage Capital Required to be Well Capitalized to Average Assets	0.0500	0.0500