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Stock Based Compensation
3 Months Ended
Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock Based Compensation
Stock Based Compensation — Compensation expense associated with RSUs and restricted stock was recognized based on the fair value of the instruments, over the instruments’ vesting period. The following table reflects the statements of income line items for stock based compensation expense for the periods stated:
 
 
For the Three Months Ended March 31,
Operating Expense Category
 
2014
 
2013
 
 
(Dollars in thousands)
Cost of revenue
 
$
81

 
$
49

Service, rental and maintenance
 
39

 
20

Selling and marketing
 
131

 
119

General and administrative
 
835

 
438

Total stock based compensation
 
$
1,086

 
$
626