14. Employee Benefits (Details 1)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Weighted average assumptions used to determine benefit obligations
Discount rate	3.91%	4.60%
Weighted average assumptions used to determine net periodic benefit cost
Discount rate	4.60%	5.45%
Expected return on plan assets	8.50%	8.50%