Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2013

Lease Obligations [Abstract]

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

The approximate future minimum rental payments due under these agreements as of December 31, 2013, were as follows (in thousands):

	Minimum Rental Payment
2014	$	10,997
2015	8,171
2016	6,883
2017	5,803
2018	4,811
Thereafter	48,722
Total	$	85,387