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Leases (Tables)
 12 Months Ended
Dec. 31, 2012
Leases [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
 
December 31, 2012
2013
$
2,574

2014
2,886

2015
2,732

2016
2,485

2017
2,415

Thereafter
9,453

Total payments
$
22,545
Schedule of Rent Expense [Table Text Block]
The Company recognized rent expense for the:
Years Ended December 31,
 
2012
 
2011
 
2010
Total rent expense
$
3,050

 
$
3,275

 
$
2,997
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]
Capital Lease
The Company also leases equipment and software under a single capital lease expiring in 2014. The capital lease was assumed by the Company in conjunction with the 2012 acquisition of ProtectCELL. The following table shows the Company's future minimum lease payments for its capital lease at December 31, 2012:
 
December 31, 2012
2013
$
134

2014
133

2015
—

2016
—

2017
—

Thereafter
—

Total minimum payments
$
267

Amounts representing interest
(26
)
Obligations under capital lease
241