Income Taxes - (Tables)

6 Months Ended

Jun. 30, 2016

Income Taxes [Abstract]

Schedule of effective tax rate [Table Text Block]

The following table provides details of income taxes:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2016			2015			2016			2015
Income before income taxes	$	10,593		$	8,656		$	30,154		$	11,753
Provision for income taxes	$	2,992		$	2,629		$	8,614		$	3,878
Effective tax rate	28.2		%	30.4		%	28.6		%	33.0		%