Commitments and Contingencies Commitments and contingencies (tables) (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

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

As of December 31, 2017, the future minimum lease payments under non-cancelable operating leases, primarily associated with our office facilities, are as follows (dollars in thousands):

2018	$	1,202
2019	1,224
2020	1,120
2021	285
2022	—
Thereafter	—
	$	3,831