Stock Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2013
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, 2013, 2012, and 2011, was $1.39, $1.85, and $4.05, respectively, and was determined using the following weighted average assumptions:
 
Year ended 31 December
 
2013
 
2012
 
2011
Expected dividend yield
—%
 
—%
 
—%
Risk-free interest rate
1.6%
 
0.9%
 
1.2%
Expected volatility
64.8%
 
63.9%
 
64.2%
Expected term (in years)
6.16
 
6.10
 
4.10
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, 2013 (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
 
125,000
 
$
929

 
$
—

 
$
929

 
April 2015
May 2011
 
20,000
 
212

 
—

 
212

 
April 2015
November 2011
 
50,000
 
277

 
—

 
277

 
April 2015
Total
 
195,000
 
$
1,418

 
$
—

 
$
1,418

 
 

Through June 30, 2012, cumulative compensation expense of $375,000 associated with these 195,000 unvested RSUs and RSAs had been recognized. From the date of grant through June 30, 2012, the Company had believed it was probable that the associated performance requirements would be achieved and therefore recognized expense on these awards. During the third quarter of 2012, the Company believed that the performance condition was no longer probable of achievement, however the Company had also not yet determined that the performance condition was improbable of achievement. Hence, expense recognition was discontinued beginning in the third quarter of 2012. As of December 31, 2013, the Company determined that the performance condition is improbable of achievement and therefore the cumulative compensation expense of $375,000 associated with these awards has been reversed in the quarter ended December 31, 2013.
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]
As of December 31, 2013, total compensation cost related to non-vested stock options and other equity based awards not yet recognized was $4.8 million, which is expected to be recognized over the next 1.6 years on a weighted-average basis.

The following table summarizes stock-based compensation expense for the years ended December 31, 2013, 2012, and 2011 and its allocation within the consolidated statements of operations (in thousands):

 
Year ended 31 December,
 
2013
 
2012
 
2011
Cost of product
$
193

 
$
567

 
$
864

Cost of service
47

 
111

 
112

Stock based compensation expense included in cost of revenues
240

 
678

 
976

Product development
696

 
2,304

 
3,891

Sales and marketing
635

 
1,896

 
2,251

General and administrative
967

 
2,098

 
2,531

Stock based compensation expense included in operating expenses
$
2,298

 
$
6,298

 
$
8,673

Total stock based compensation expense related to stock options and share awards
$
2,538

 
$
6,976

 
$
9,649

Tax benefit
$
—

 
$
—

 
$
—

Stock-based compensation expense related to stock options and share awards, net of tax
$
2,538

 
$
6,976

 
$
9,649


As of December 31, 2013, approximately $42,000 and $8,000 of stock-based compensation expense was capitalized as part of the cost of inventory and deferred cost of goods sold, respectively. As of December 31, 2012, approximately $38,000 and $3,000 of stock-based compensation expense was capitalized as part of the cost of inventory and deferred cost of goods sold, respectively.