(1) Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Asset Retirement Obligations [Table Text Block]

	2012		2011
Balance beginning of year	$	2,276	$	1,150
Accretion		138		76
Additions		159		1,050
Balance end of year	$	2,573	$	2,276