401(k) Profit Sharing Plan (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
401(k) Profit Sharing Plan [Abstract]
Description of Defined Contribution Pension and Other Postretirement Plans	The First United Corporation 401(k) Plan is a defined contribution plan that is intended to qualify under section 401(k) of the Internal Revenue Code. The 401(k) Plan covers substantially all employees of First United Corporation and its subsidiaries. Eligible employees can elect to contribute to the plan through payroll deductions. The first 1% of contributions of an employee's base salary are matched at 100% and the next 5% are matched on a 50% basis by the Corporation. Expense charged to operations for the 401(k) Plan was $.7 million in 2012 and $.4 million in 2011.
Defined Contribution Plan, Administrative Expenses	$ 0.7	$ 0.4

- Definition

Description of the terms and benefits provided by the employer's defined contribution plans. A defined contribution plan provides benefits in return for services rendered, provides an individual account for each participant, and has terms that specify how contributions to the individual's account are to be determined rather than the amount of benefits the individual is to receive. Under a defined contribution pension plan, the benefits a participant will receive depend solely on the amount contributed to the participant's account, the returns earned on investments of those contributions, and forfeitures of other participants' benefits that may be allocated to such participant's account. A description of the plan(s) including employee groups covered, the basis for determining contributions, and the nature and effects of significant matters affecting comparability of information for all periods presented.

+ References+ Details