Restructuring and asset impairment (Tables)

3 Months Ended

Mar. 31, 2015

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs [Table Text Block]

The table below provides the activity related to restructuring charges and the remaining liability as of March 31, 2015:

Restructuring obligations at December 31, 2014	$	764
Restructuring costs incurred	—
Cash payments	(203		)
Restructuring obligations at March 31, 2015	$	561