14. Employee Benefits (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Amounts recognized on Consolidated Balance Sheet
Other assets
Other liabilities	(5,180)	(8,830)
Net amount recognized	(5,180)	(8,830)
Amounts recognized in accumulated other comprehensive income consists of:
Net loss (gain)	8,953	11,756
Unrecognized transition asset
Net amount recognized	8,953	11,756
Components of net periodic benefit cost
Interest Cost	875	912
Expected return on assets	(928)	(948)
Amortization of transition asset
Amortization of net loss.	680	449
Net periodic benefit cost	627	413
Settlement (gain)/loss
Total	627	413
Benefit Obligation Recognized in Other Comprehensive Income
Net loss (gain)	(2,748)	3,181
Prior service cost (credit)
Amortization of prior service cost
Net amount recognized in other comprehensive income	(2,748)	3,181
Accumulated Pension Benefit Obligation	$ (5,637)	$ (8,535)