Operating Lease Obligations (Tables)

12 Months Ended

Dec. 31, 2012

Leases, Operating [Abstract]

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

Minimum rental commitments under noncancelable operating leases, as of December 31, 2012 were as follows:

Minimum lease obligations	Operating Lease Obligations
Year ending December 31, 2013	$	4,309
2014	2,246
2015	1,375
2016	932
2017	225
2018 and after	162
Total minimum lease payments	$	9,249