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Segment Information (Tables)
12 Months Ended
Feb. 28, 2014
Segment Information Tables  
Segment information
   Twelve Months Ended February 28, 2014  Twelve Months Ended February 28, 2013
   Ultrasonic
Spraying
  Rental
Real Estate
Operations
  Eliminations  Consolidated  Ultrasonic
Spraying
  Rental
Real Estate
Operations
  Eliminations  Consolidated
Net Sales  $10,202,273   $217,453   $140,788   $10,278,938   $9,490,564   $187,531   $135,741   $9,542,354 
Rental Expense  $140,788   $154,792   $(140,788)  $154,792   $135,741   $118,559   $(135,741)  $118,559 
Interest Expense  $2,411   $107,740        $110,151   $3,546   $110,385        $113,931 
Net Income (Loss)  $529,553   $(45,079)       $484,474   $173,664   $(41,413)       $132,251 
Assets  $7,268,871   $2,510,290        $9,779,161   $6,574,429   $2,492,015        $9,066,444 
Debt  $81,165   $1,589,360        $1,670,525   $140,619   $1,972,616        $2,113,235