Income Taxes

3 Months Ended

Mar. 31, 2012

Income Taxes [Abstract]

Income Taxes

5. Income Taxes

Provision for income taxes is based upon the estimated annual effective tax rate. The effective tax rate for the three months ended March 31, 2012 and 2011 was -43.7% and 3.3%, respectively. The difference in the effective rate from the statutory rate is primarily due to permanent timing differences between expenses recorded for financial and tax reporting and the reversal of a previously accrued tax provision. During the first quarter of 2012, certain statutes of limitations expired. As a result, in the first quarter of 2012, the Company reduced its income tax payable and tax provision by a net favorable amount of $69,791.