Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2016

Leases [Abstract]

Schedule of assets acquired under capital leases [Table Text Block]

Assets acquired under capital leases and included in property and equipment consisted of the following:

	December 31,
	2016		2015
Equipment	$	2,528	$	—
Less accumulated amortization	160		—
	$	2,368	$	—

Schedule of future minimum lease payments for capital leases [Table Text Block]

Minimum rental commitments under all capital and noncancelable operating leases, as of December 31, 2016, were as follows:

	Lease Obligations
Minimum lease obligations	Capital		Operating
Year ending December 31, 2017	$	171	$	6,369
2018	271		4,559
2019	756		3,380
2020	632		2,398
2021	515		1,164
2022 and after	—		1,266
Total minimum lease payments	2,345		$	19,136
Amounts representing interest	2
Present value of net minimum lease payments	2,343
Less current portion	170
Long-term capital lease obligations, December 31, 2016	$	2,173

Schedule of future minimum rental payments for operating leases [Table Text Block]

Minimum rental commitments under all capital and noncancelable operating leases, as of December 31, 2016, were as follows:

	Lease Obligations
Minimum lease obligations	Capital		Operating
Year ending December 31, 2017	$	171	$	6,369
2018	271		4,559
2019	756		3,380
2020	632		2,398
2021	515		1,164
2022 and after	—		1,266
Total minimum lease payments	2,345		$	19,136
Amounts representing interest	2
Present value of net minimum lease payments	2,343
Less current portion	170
Long-term capital lease obligations, December 31, 2016	$	2,173