Employee Benefit Plans (Components of the Net Periodic Pension Plan Cost) (Pension) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost			$ 168	$ 129
Interest cost			774	737
Expected return on assets			(1,484)	(1,328)
Amortization of transition asset			(10)	(20)
Amortization of net actuarial loss			372	187
Amortization of prior service cost			6	6
Net pension credit included in employee benefits			$ (174)	$ (289)
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 84	$ 64
Interest cost	387	371
Expected return on assets	(741)	(663)
Amortization of transition asset	(5)	(10)
Amortization of net actuarial loss	186	94
Amortization of prior service cost	3	3
Net pension credit included in employee benefits	$ (86)	$ (141)
Plan modificaiton description			The Pension Plan is a noncontributory defined benefit pension plan covers our employees who were hired prior to the freeze and others who were grandfathered into the plan. The benefits are based on years of service and the employees' compensation during the last five years of employment. Effective April 30, 2010, the Pension Plan was amended, resulting in a "soft freeze", the effect of which prohibits new entrants into the plan and ceases crediting of additional years of service after that date. Effective January 1, 2013, the Pension Plan was amended to unfreeze it for those employees for whom the sum of (a) their ages, at their closest birthday, plus (b) years of service for vesting purposes equals 80 or greater. The "soft freeze" continues to apply to all other plan participants. Pension benefits for these participants are managed through discretionary contributions to the First United Corporation 401(k) Profit Sharing Plan (the "401(k) Plan"). The Bank established the SERP in 2001as an unfunded supplemental executive retirement plan. The SERP is available only to a select group of management or highly compensated employees to provide supplemental retirement benefits in excess of limits imposed on qualified plans by federal tax law. Concurrent with the establishment of the SERP, the Bank acquired Bank Owned Life Insurance ("BOLI") policies on the senior management personnel and officers of the Bank. The benefits resulting from the favorable tax treatment accorded the earnings on the BOLI policies are intended to provide a source of funds for the future payment of the SERP benefits as well as other employee benefit costs. The benefit obligation activity for both the Pension Plan and SERP was calculated using an actuarial measurement date of January 1. Plan assets and the benefit obligations were calculated using an actuarial measurement date of December 31.The Corporation will assess the need for future annual contributions to the pension plan based upon its funded status and an evaluation of the future benefits to be provided thereunder. The Corporation expects to fund the annual projected benefit payments for the SERP from operations.On January 9, 2015, the Corporation and members of management who do not participate in the SERP entered into participation agreements under the Deferred Compensation Plan, each styled as a SERP Alternative Participation Agreement (the "Participation Agreement").  Pursuant to each Participation Agreement, the Corporation agreed, for each Plan Year (as defined in the Deferred Compensation Plan) in which it determines that it has been Profitable (as defined in the Participation Agreement), to make a discretionary contribution to the participant's Employer Account in an amount equal to 15% of the participant's base salary level for such Plan Year, with the first Plan Year being the year ending December 31, 2015.  The Participation Agreement provides that the participant will become 100% vested in the amount maintained in his or her Employer Account upon the earliest to occur of the following events: (a) Normal Retirement (as defined in the Participation Agreement); (b)  Separation from Service (as defined in the Participation Agreement) following a Change of Control (as defined in the Deferred Compensation Plan) and subsequent Triggering Event (as defined in the Participation Agreement); (c) Separation from Service due to a Disability (as defined in the Participation Agreement); (d) with respect to a particular award of Employer Contribution Credits, the participant's completion of two consecutive Years of Service (as defined in the Participation Agreement) immediately following the Plan Year for which such award was made; or (e) death.  Notwithstanding the foregoing, however, a participant will lose entitlement to the amount maintained in his or her Employer Account in the event employment is terminated for Cause (as defined in the Participation Agreement).  In addition, the Participation Agreement conditions entitlement to the amounts held in the Employer Account on the participant (1) refraining from engaging in Competitive Employment (as defined in the Participation Agreement) for three years following his or her Separation from Service, (2) refraining from injurious disclosure of confidential information concerning the Corporation, and (3) remaining available, at the Corporation's reasonable request, to provide at least six hours of transition services per month for 12 months following his or her Separation from Service (except in the case of death or Disability), except that only item (2) will apply in the event of a Separation from Service following a Change of Control and subsequent Triggering Event.