Income Taxes	6 Months Ended
Jun. 30, 2017
Income Taxes
Income Taxes	10. Income Taxes The effective tax rate for the three and six months ended June 30, 2017 was 0.06%, compared to 0.15% for the same periods in 2016. Should we continue to generate taxable income in 2017, we expect that the taxable income will be substantially offset by the utilization of net operating losses or other deferred tax assets. The difference between the consolidated effective income tax rate and the U.S. federal statutory rate is primarily attributable to a change in valuation allowance against net deferred tax assets.

Income Taxes

6 Months Ended

Jun. 30, 2017

10. Income Taxes

The effective tax rate for the three and six months ended June 30, 2017 was 0.06%, compared to 0.15% for the same periods in 2016. Should we continue to generate taxable income in 2017, we expect that the taxable income will be substantially offset by the utilization of net operating losses or other deferred tax assets. The difference between the consolidated effective income tax rate and the U.S. federal statutory rate is primarily attributable to a change in valuation allowance against net deferred tax assets.