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Property and Equipment
9 Months Ended
Sep. 30, 2013
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment
 
The net carrying value of property and equipment was as follows:
 
September 30, 2013
 
December 31, 2012
Furniture and fixtures
$
67,341

 
$
421,425

Equipment
2,503,838

 
2,473,813

Software
7,857,476

 
8,018,509

Leasehold improvements
66,903

 
348,159

Subtotal
$
10,495,558

 
$
11,261,906

Less: accumulated depreciation and amortization
(9,192,279
)
 
(9,151,135
)
Total
$
1,303,279

 
$
2,110,771



During the three and nine months ended September 30, 2013 depreciation expense was $409,685 and $1,619,719, respectively. During the three and nine months ended September 30, 2012, depreciation expense was $694,143 and $1,829,715, respectively.