Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2018

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,
	2018		2017
Equipment	$	6,534	$	3,481
Less accumulated amortization	1,797		805
	$	4,737	$	2,676

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, 2018, were as follows:

	Lease Obligations
Minimum lease obligations	Capital		Operating
Year ending December 31, 2019	$	1,426	$	14,023
2020	1,371		11,272
2021	1,183		7,712
2022	272		5,129
2023	71		2,060
2024 and after	—		1,923
Total minimum lease payments	4,323		$	42,119
Amounts representing interest	116
Present value of net minimum lease payments	4,207
Less current portion	1,345
Long-term capital lease obligations, December 31, 2018	$	2,862

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, 2018, were as follows:

	Lease Obligations
Minimum lease obligations	Capital		Operating
Year ending December 31, 2019	$	1,426	$	14,023
2020	1,371		11,272
2021	1,183		7,712
2022	272		5,129
2023	71		2,060
2024 and after	—		1,923
Total minimum lease payments	4,323		$	42,119
Amounts representing interest	116
Present value of net minimum lease payments	4,207
Less current portion	1,345
Long-term capital lease obligations, December 31, 2018	$	2,862