Income Tax

3 Months Ended

Mar. 31, 2013

Income Tax [Abstract]

Income Tax

10.  Income Tax

At both March 31, 2013 and December 31, 2012, we had approximately $1.9 million of gross unrecognized tax benefits.  We do not expect the total amount of unrecognized tax benefits to significantly increase or decrease during the balance of 2013.

As a result of being in a net operating loss carryforward position, we have established a deferred tax asset valuation allowance of $62.5 million and $65.1 million as of March 31, 2013 and December 31, 2012, respectively against all of our net deferred tax assets.  Accordingly, other than $0.04 million of alternative minimum tax expense in 2013, we are not recognizing income tax expense related to any income before income tax.  Income tax expense was $0.04 million and zero for the three month periods ended March 31, 2013 and 2012.