Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

The following is a schedule of the approximate future minimum lease payments required under non-cancelable operating leases that have initial or remaining terms in excess of one year at December 31, 2016 (in thousands):

Year Ending December 31,
2017	$	3,343
2018		2,591
2019		2,579
2020		2,350
2021		1,754
	$	12,617