Income taxes

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Income Tax Disclosure [Text Block]

Note 7.  Income taxes

Income Taxes

The following table presents details of the net provision for income taxes:

	March 31,
	2018		2017
Net Provision for income taxes	$	(418)	$	1,287

As a result of our cumulative tax losses in the U.S. and certain foreign jurisdictions, and the full utilization of our loss carryback opportunities, we have concluded that a full valuation allowance should be recorded in such jurisdictions. In certain other foreign jurisdictions where we do not have cumulative losses, we had net deferred tax liabilities.