Asset Retirement Obligation (Tables)

12 Months Ended

Dec. 31, 2012

Asset Retirement Obligations [Abstract]

Schedule of Asset Retirement Obligation [Table Text Block]

	Years Ended December 31,
	2012	2011
Asset retirement obligations, beginning of year	$  2,067,700	$    1,880,500
Accretion expense	105,400	112,800
Revisions	(71,200)	74,400
Asset retirement obligations, end of year	$  2,101,900	$    2,067,700