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Operating Leases
12 Months Ended
Dec. 31, 2011
Operating Leases [Abstract]  
Operating Leases

18.    OPERATING LEASES

The Company leases equipment and office space under noncancellable operating leases and also month-to-month rental agreements.

The following is a schedule, by years, of future minimum rental payments required under operating leases having initial or remaining noncancellable terms in excess of one year as of December 31, 2011:

 

Year ending December 31,

  

2012

   $ 332,322   

2013

     305,560   

2014

     233,850   

2015

     164,933   

2016

     68,130   

2017

     49,520   

Total rental expense under all operating leases was $634,375 and $551,413 in 2011 and 2010, respectively.