Leases Lease Cost (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Lease, Cost [Table Text Block]

Total lease expense for the three and six months ended June 30, 2019 is as follows:

	Three Months Ended		Six Months Ended
	June 30, 2019		June 30, 2019
Operating lease cost	$	1,075	$	2,069
Short-term lease cost	176		249
Total lease cost	$	1,251	$	2,318