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Segment Information (Details) (USD $)
 3 Months Ended 3 Months Ended 3 Months Ended
May 31, 2014
May 31, 2013
Feb. 28, 2014
May 31, 2014
Ultrasonic Spraying
May 29, 2013
Ultrasonic Spraying
May 31, 2013
Ultrasonic Spraying
May 31, 2014
Rental Real Estate Operations
May 31, 2013
Rental Real Estate Operations
May 31, 2014
Eliminations
May 31, 2013
Eliminations
May 31, 2014
Consolidated
May 31, 2013
Consolidated
Net Sales $ 2,420,699 $ 2,374,394   $ 2,401,949 $ 2,353,979   $ 67,824 $ 54,350 $ 49,074 $ 33,935 $ 2,420,699 $ 2,374,394
Rental Expense 39,159 34,482   49,074 33,935   39,159 34,482 (49,074) (33,935) 39,159 34,482
Interest Expense 16,035 27,775   394 726   16,035 27,049     16,429 27,775
Net Income (Loss) 66,642 73,748   54,012 80,928   12,630 (7,180)     66,642 73,748
Assets 9,366,072   9,779,161 6,876,160   6,821,131 2,489,912 2,478,605     9,366,072 9,299,736
Debt $ 1,622,566   $ 1,670,524 $ 66,091   $ 125,858 $ 1,556,475 $ 1,956,328     $ 1,622,566 $ 2,082,186