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Pension Plan (Narrative) (Details) (USD $)	12 Months Ended
Pension Plan (Narrative) (Details) (USD $)	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined benefit pension plan-Amortization of net loss	$ 663,536
Defined benefit pension plan-Amortization of prior service cost	17,469
Estimated contribution to plan for 2013	$ 800,000
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Maximum investment policy	50.00%

The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

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- Definition

The amounts in accumulated other comprehensive income related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

+ References+ Details