Asset Retirement Obligation (Tables)

12 Months Ended

Dec. 31, 2012

Asset Retirement Obligation [Abstract]

Schedule of Asset Retirement Obligation [Table Text Block]

	Years Ended December 31,
	2012	2011
Asset retirement obligations, beginning of year	$     837,200	$       678,400
Accretion expense	42,700	40,700
Revisions	600	118,100
Asset retirement obligations, end of year	$     880,500	$       837,200