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(14) Employee Benefit Plans (Details 2)	12 Months Ended
(14) Employee Benefit Plans (Details 2)	Dec. 31, 2012	Dec. 31, 2011
Compensation and Retirement Disclosure [Abstract]
Discount rate	1.75%	2.00%
Rate of increase in compensation levels	3.00%	3.30%
Expected long-term rate of return on plan assets	1.75%	2.00%

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

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