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Defined Benefit Plan | 3 Months Ended
--- | ---
Mar. 31, 2013
Defined Benefit Plan [Abstract] |
Defined Benefit Plan | Note 7: Defined Benefit Plan Components of Net Periodic Benefit Cost
|  | Pension Benefits |
|  | Three Months Ended March, |
|  | 2013 |  |  | 2012 |
Service cost |  | $ | 149 |  |  | $ | 117 |
Interest cost |  |  | 154 |  |  |  | 185 |
Expected return on plan assets |  |  | (246 | ) |  |  | (269 | )
Amortization of prior service cost |  |  | (25 | ) |  |  | (25 | )
Recognized net actuarial loss |  |  | 133 |  |  |  | 127 |
Net Periodic Benefit Cost |  | $ | 165 |  |  | $ | 135 |
2013 Plan Year Employer Contribution Without considering the prefunding balance, NBI's minimum required contribution to the National Bankshares, Inc. Retirement Income Plan (the "Plan") is $815. Considering the prefunding balance, the 2013 minimum required contribution is $0. The Company elected to contribute $173 to the Plan during the three months ended March 31, 2013.

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