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Stock Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2012
Stock Based Compensation [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The weighted average fair value of options and SARs granted during the years ended December 31, 2012, 2011, and 2010, was $1.85, $4.05, and $3.94, respectively, and was determined using the following weighted average assumptions:
 
Year ended 31 December
 
2012
 
2011
 
2010
Expected dividend yield
—%
 
—%
 
—%
Risk-free interest rate
0.9%
 
1.2%
 
1.2%
Expected volatility
63.9%
 
64.2%
 
67.5%
Expected term (in years)
6.10
 
4.10
 
4.20
Share based Compensation by arrangement, details of performance based awards [Table Text Block]
The following table contains pertinent information regarding these outstanding awards as of December 31, 2012 (in thousands except for number of awards granted):

Grant Date
 
# of Awards Granted
 
Fair Value on Grant Date
 
Cumulative Expense Recognized
 
Unearned Compensation Expense
 
Latest Date Performance Condition Could be Met
August 2010
 
142,500
 
$
1,058

 
$
451

 
$
607

 
April 2015
April 2011
 
17,500
 
156

 
51

 
105

 
April 2015
May 2011
 
20,000
 
212

 
67

 
145

 
April 2015
November 2011
 
50,000
 
277

 
53

 
224

 
April 2015
Total
 
230,000
 
$
1,703

 
$
622

 
$
1,081

 
 
Employee Service Share-based Compensation, Allocation of Recognized Period Costs  
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
The following table summarizes stock-based compensation expense for the years ended December 31, 2012, 2011, and 2010 and its allocation within the consolidated statements of operations (in thousands):

 
Year ended 31 December,
 
2012
 
2011
 
2012
Cost of product
$
567

 
$
864

 
$
1,172

Cost of service
111

 
112

 
125

Stock based compensation expense included in cost of revenues
678

 
976

 
1,297

Product development
2,304

 
3,891

 
4,185

Sales and marketing
1,896

 
2,251

 
2,939

General and administrative
2,098

 
2,531

 
3,907

Stock based compensation expense included in operating expenses
$
6,298

 
$
8,673

 
$
11,031

Total stock based compensation expense related to stock options and share awards
$
6,976

 
$
9,649

 
$
12,328

Tax benefit
$
—

 
$
—

 
$
—

Stock-based compensation expense related to stock options and share awards, net of tax

$
6,976

 
$
9,649

 
$
12,328