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Lease Obligations (Tables)
 9 Months Ended
Sep. 30, 2016
Leases [Abstract]  
Schedule of Future Minimum Lease Payments for Capital and Operating Leases [Table Text Block]
The future minimum lease payments required under capital leases and operating leases, together with the present value of capital leases, as of September 30, 2016 were as follows:
 
 
 
Capital
 
Operating
 
(In thousands)
 
Lease
Obligations
 
Lease
Obligations
 
 
 
 
 
 
 
 
 
Remainder of 2016
 
$
506
 
$
1,232
 
2017
 
 
1,013
 
 
1,980
 
2018
 
 
1,013
 
 
1,672
 
2019
 
 
1,013
 
 
1,397
 
2020
 
 
1,013
 
 
838
 
2021
 
 
343
 
 
426
 
Total minimum lease payments
 
$
4,901
 
$
7,545
 
Interest
 
 
(348)
 
 
 
 
Net present value of minimum lease payments
 
 
4,553
 
 
 
 
Less: Current portion of capital lease obligations
 
 
(888)
 
 
 
 
Long-term capital lease obligations
 
$
3,665