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Prepaid expenses and deposits
12 Months Ended
Mar. 31, 2012
Prepaid expenses and deposits/Other assets [Abstract]  
Prepaid expenses and deposits

10. Prepaid expenses and deposits

 

                     

Current:

                   
     March 31,
2012
        March 31,
2011
 

Prepaid insurance and property taxes

    $1,257           $1,022  

Prepaid lease payments

    4,624           6,203  

Prepaid interest

    434           1,044  
      $6,315           $8,269  

Long term:

                   
     March 31,
2012
        March 31,
2011
 

Prepaid lease payments (note 12(a))

    $895           $2,354