Employee Benefits Plans (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Net Funded Status [Table Text Block]

	2012	2011
	Supplemental	Supplemental
	Plan	Plan
Change in benefit obligation:
Beginning benefit obligation	$  2,065	$  1,956
Interest cost	82	93
Actuarial loss	223	179
Benefits paid	(163)	(163)
Ending benefit obligation	2,207	2,065
Change in plan assets:
Beginning fair value of plan assets
Employer contributions	163	163
Benefits paid	(163)	(163)
Ending fair value of plan assets
Funded status	$ (2,207)	$ (2,065)

	2012	2011
Change in benefit obligation:
Beginning benefit obligation	$ 1,400	$ 1,658
Interest cost	49	61
Actuarial gain	(66)	(143)
Plan participants’ contributions	122	199
Benefits paid	(150)	(375)
Ending benefit obligation	1,355	1,400
Change in plan assets:
Beginning fair value of plan assets
Employer contributions	28	176
Plan participants’ contributions	122	199
Benefits paid	(150)	(375)
Ending fair value of plan assets
Funded status	$(1,355)	$(1,400)

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

Current liabilities	$   (161)	$    (162)
Non current liabilities	(2,046)	(1,903)
Total	$ (2,207)	$ (2,065)

	2012	2011
Current liabilities	$    (184)	$    (208)
Non current liabilities	(1,171)	(1,192)
Total	$ (1,355)	$ (1,400)

Schedule of Net Benefit Costs [Table Text Block]

	2012	2011	2010
Interest cost	$      82	$      93	$    101
Net amortization and deferral	223	179	94
Total expense	$    305	$    272	$    195

	2012	2011	2010
Interest cost	$   49	$   61	$  82
Amortization of transition obligation	(177)	(177)	(153)
Amortization of net actuarial loss	11	8	47
Net periodic postretirement benefit income	$(117)	$(108)	$ (24)

Schedule of Assumptions Used [Table Text Block]

	2012	2011	2010
Discount rate for funded status	3.10%	4.15%	4.90%
Discount rate for pension cost	4.15%	4.90%	5.50%

	2012	2011	2010
Discount rate for funded status	2.65%	3.70%	4.35%
Discount rate for postretirement benefit cost	3.70%	4.35%	4.75%
Health care cost assumed trend rate for next year	8.00%	8.50%	9.00%
Rate that the cost trend rate gradually declines to	5.50%	5.50%	5.50%
Year that the rate reaches the rate it is assumed to remain at	2018	2018	2018

Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]

	Supplemental Plan	Other Postretirement Benefits
Net loss	$773	$ 118
Prior service credit		(414)
Total	$773	$(296)

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

	Supplemental Plan	Other Postretirement Benefits
Net loss	$ 33
Prior service credit		$ (168)
Total	$ 33	$ (168)