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Property And Equipment
3 Months Ended
Mar. 31, 2012
Property And Equipment [Abstract]  
Property And Equipment

5. Property and Equipment

Property and equipment consist of the following:

 

March 31,

December 31,

2012

2011

Equipment

$9,016,945

$8,977,623

Equipment held for lease

547,416

         547,416

Leasehold improvements

2,473,380

      2,473,880

 

12,038,241

    11,998,919

Less: Accumulated depreciation

(8,976,568)

   (8,675,063)

Net property and equipment

$3,061,673

$3,323,856