Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Change in Asset Retirement Obligation

The following summarizes the changes in asset retirement obligations in 2012:

	(In thousands)
Beginning balance	$	—
Acquisition of Credo	1,255
Accretion expense	26
Additions	79
	$	1,360

Schedule of Property, Plant and Equipment

We depreciate these assets using the straight-line method over their estimated useful lives as follows:

	Estimated	Carrying Value Year-End
	Useful Lives	2012			2011
		(In thousands)
Buildings and building improvements	10 to 40 years	$	4,835		$	4,916
Property and equipment	2 to 10 years	5,745			5,426
		10,580			10,342
Less: accumulated depreciation		(5,721		)	(5,164		)
		$	4,859		$	5,178