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Property and Equipment
3 Months Ended
Mar. 31, 2013
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment
 
The net carrying value of property and equipment was as follows:
 
March 31, 2013
 
December 31, 2012
Furniture and fixtures
$
67,341

 
$
421,425

Equipment
2,690,405

 
2,473,813

Software
7,551,077

 
8,018,509

Leasehold improvements
94,055

 
348,159

Subtotal
$
10,402,878

 
$
11,261,906

Less: accumulated depreciation and amortization
(8,446,159
)
 
(9,151,135
)
Total
$
1,956,719

 
$
2,110,771



During the three months ended March 31, 2013 and 2012 depreciation expense was $705,467 and $329,849, respectively.