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Segment Information (Tables)
12 Months Ended
Feb. 28, 2017
Segment Information Tables  
Segment information
   Fiscal Year Ended February 28, 2017   Fiscal Year Ended February 29, 2016 
   Ultrasonic Spraying   Rental
Real Estate Operations
   Eliminations   Consolidated   Ultrasonic Spraying   Rental
Real Estate Operations
   Eliminations   Consolidated 
Net Sales  $9,634,956   $285,895   $196,298   $9,724,553   $11,738,982   $291,046   $196,298   $11,833,730 
Rental Expense  $196,298   $   $(196,298)  $   $196,298   $   $(196,298)  $ 
Rental Operations Expense  $   $85,976        $85,976        $85,887        $85,887 
Depreciation Expense  $354,896   $74,464        $429,360   $392,803   $72,629        $465,432 
Interest Expense  $   $52,294        $52,294   $83   $58,364        $58,447 
Net Income (Loss)  $218,843   $(123,137)       $95,706   $669,974   $(122,245)       $547,729 
Assets  $8,346,183   $2,389,753        $10,735,936   $8,214,873   $2,454,664        $10,669,537 
Debt  $   $1,176,348        $1,176,348   $   $1,319,737        $1,319,737